diff --git a/proto/cerc/auction/v1/auction.proto b/proto/cerc/auction/v1/auction.proto
index 4720cc9..8f2b74e 100644
--- a/proto/cerc/auction/v1/auction.proto
+++ b/proto/cerc/auction/v1/auction.proto
@@ -40,7 +40,7 @@ message Params {
     (gogoproto.moretags) = "json:\"reveal_fee\" yaml:\"reveal_fee\""
   ];
 
-  // Minimum acceptable bid amount
+  // Minimum acceptable bid amount (for vickrey auctions)
   cosmos.base.v1beta1.Coin minimum_bid = 5 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"minimum_bid\" yaml:\"minimum_bid\""
@@ -54,9 +54,7 @@ message Auction {
   string id = 1;
 
   // Auction's kind (vickrey | provider)
-  string kind = 2 [
-    (gogoproto.moretags) = "json:\"kind\" yaml:\"kind\""
-  ];
+  string kind = 2 [ (gogoproto.moretags) = "json:\"kind\" yaml:\"kind\"" ];
 
   string status = 3;
 
@@ -95,13 +93,13 @@ message Auction {
     (gogoproto.moretags) = "json:\"reveal_fee\" yaml:\"reveal_fee\""
   ];
 
-  // Minimum acceptable bid amount for a valid commit
+  // Minimum acceptable bid amount for a valid commit (for vickrey auctions)
   cosmos.base.v1beta1.Coin minimum_bid = 10 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"minimum_bid\" yaml:\"minimum_bid\""
   ];
 
-  // Addresses of the winners (one for vickrey auctions and can be multiple for provider auctions)
+  // Winner's address for Vickrey auctions, can be multiple for provider auctions
   repeated string winner_addresses = 11;
 
   // Winning bids, i.e., the best bids
@@ -110,13 +108,13 @@ message Auction {
     (gogoproto.moretags) = "json:\"winning_bids\" yaml:\"winning_bids\""
   ];
 
-  // Amount the winner pays, i.e. the second best bid
+  // Amount the winner pays (vickrey auction) or is paid (provider auction)
   cosmos.base.v1beta1.Coin winning_price = 13 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"winning_price\" yaml:\"winning_price\""
   ];
 
-  // Maximum acceptable bid amount for a valid commit for service provider auctions
+  // Maximum acceptable bid amount (for provider auctions)
   cosmos.base.v1beta1.Coin max_price = 14 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"max_price\" yaml:\"max_price\""
diff --git a/proto/cerc/auction/v1/tx.proto b/proto/cerc/auction/v1/tx.proto
index b454551..a1054d7 100644
--- a/proto/cerc/auction/v1/tx.proto
+++ b/proto/cerc/auction/v1/tx.proto
@@ -67,7 +67,7 @@ message MsgCreateAuction {
     (gogoproto.moretags) = "json:\"reveal_fee\" yaml:\"reveal_fee\""
   ];
 
-  // Minimum acceptable bid amount
+  // Minimum acceptable bid amount (for vickrey auctions)
   cosmos.base.v1beta1.Coin minimum_bid = 5 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"minimum_bid\" yaml:\"minimum_bid\""
@@ -78,11 +78,9 @@ message MsgCreateAuction {
       [ (gogoproto.moretags) = "json:\"signer\" yaml:\"signer\"" ];
 
   // Auction's kind (vickrey | provider)
-  string kind = 7 [
-    (gogoproto.moretags) = "json:\"kind\" yaml:\"kind\""
-  ];
+  string kind = 7 [ (gogoproto.moretags) = "json:\"kind\" yaml:\"kind\"" ];
 
-  // Maximum acceptable bid amount (for service provider auctions)
+  // Maximum acceptable bid amount (for provider auctions)
   cosmos.base.v1beta1.Coin max_price = 8 [
     (gogoproto.nullable) = false,
     (gogoproto.moretags) = "json:\"max_price\" yaml:\"max_price\""
diff --git a/src/auction.test.ts b/src/auction.test.ts
index 4398d77..1e25cec 100644
--- a/src/auction.test.ts
+++ b/src/auction.test.ts
@@ -122,7 +122,7 @@ const createAuctionTests = () => {
     setTimeout(done, waitTime);
   });
 
-  test('Check auction winner, status, and balance.', async () => {
+  test('Check auction winner, status, and winner balance.', async () => {
     const [auction] = await registry.getAuctionsByIds([auctionId]);
     expect(auction.status).toEqual('completed');
 
@@ -133,10 +133,9 @@ const createAuctionTests = () => {
     expect(highestBidder.bid.reveal.bidAmount).toEqual(`${auction.winnerBids[0].quantity}${auction.winnerBids[0].type}`);
     expect(secondHighestBidder.bid.reveal.bidAmount).toEqual(`${auction.winnerPrice.quantity}${auction.winnerPrice.type}`);
 
-    const initialBalance = 20000000;
-    const winningBidAmount = parseInt(auction.winnerPrice.quantity, 10);
-
-    const expectedBalance = (initialBalance - winningBidAmount).toString();
+    const bidderInitialBalance = 20000000;
+    const winningPriceAmount = parseInt(auction.winnerPrice.quantity, 10);
+    const expectedBalance = (bidderInitialBalance - winningPriceAmount).toString();
 
     const [winnerAccountObj] = await registry.getAccounts([highestBidder.address]);
     expect(winnerAccountObj).toBeDefined();
@@ -149,7 +148,7 @@ const createAuctionTests = () => {
   });
 };
 
-const createSPAuctionTests = () => {
+const createProviderAuctionTests = () => {
   let registry: Registry;
   let auctionId: string;
 
@@ -159,7 +158,7 @@ const createSPAuctionTests = () => {
   let bidAmounts: { type: string, quantity: string }[] = [];
 
   beforeAll(async () => {
-    console.log('Running service provider auction tests');
+    console.log('Running provider auction tests');
 
     registry = new Registry(gqlEndpoint, rpcEndpoint, { chainId });
 
@@ -181,7 +180,7 @@ const createSPAuctionTests = () => {
     }
   });
 
-  test('Create service provider auction', async () => {
+  test('Create provider auction', async () => {
     const maxPrice = {
       denom: 'alnt',
       amount: '100000000'
@@ -245,7 +244,7 @@ const createSPAuctionTests = () => {
     setTimeout(done, waitTime);
   });
 
-  test('Check auction winner, status, and balance.', async () => {
+  test('Check auction winner, status, and bidder balance.', async () => {
     const [auction] = await registry.getAuctionsByIds([auctionId]);
     expect(auction.status).toEqual('completed');
 
@@ -258,23 +257,35 @@ const createSPAuctionTests = () => {
 
       expect(winner.bid.reveal.bidAmount).toEqual(`${auction.winnerBids[i].quantity}${auction.winnerBids[i].type}`);
 
-      const initialBalance = 20000000;
+      const bidderInitialBalance = 20000000;
 
       const [winnerAccountObj] = await registry.getAccounts([winner.address]);
       expect(winnerAccountObj).toBeDefined();
       expect(winnerAccountObj.address).toBe(winner.address);
 
       const [{ type, quantity: currentBalance }] = winnerAccountObj.balance;
-      expect(type).toBe(DENOM);
 
       const winningBidAmount = parseInt(auction.winnerPrice.quantity, 10);
+      const expectedBalance = bidderInitialBalance + winningBidAmount;
 
-      const expectedBalance = (parseInt(currentBalance, 10) + winningBidAmount).toString();
-
-      expect(expectedBalance).toEqual(initialBalance.toString());
+      expect(type).toBe(DENOM);
+      expect(currentBalance).toEqual(expectedBalance);
     }
+
+    const [creatorAccountObj] = await registry.getAccounts([auctionCreatorAccount.address]);
+    expect(creatorAccountObj).toBeDefined();
+    expect(creatorAccountObj.address).toBe(auctionCreatorAccount.address);
+
+    const [{ type, quantity: currentBalance }] = creatorAccountObj.balance;
+
+    const creatorInitialBalance = 1000000000000;
+    const winningBidAmount = parseInt(auction.winnerPrice.quantity, 10);
+    const expectedBalance = creatorInitialBalance - (winningBidAmount * 3);
+
+    expect(type).toBe(DENOM);
+    expect(currentBalance).toEqual(expectedBalance);
   });
 };
 
 describe('Vickrey Auction', () => createAuctionTests());
-describe('Service provider Auction', () => createSPAuctionTests());
+describe('Provider Auction', () => createProviderAuctionTests());