diff --git a/contracts/interfaces/IBiconomySponsorshipPaymaster.sol b/contracts/interfaces/IBiconomySponsorshipPaymaster.sol
index a364d14..faf0665 100644
--- a/contracts/interfaces/IBiconomySponsorshipPaymaster.sol
+++ b/contracts/interfaces/IBiconomySponsorshipPaymaster.sol
@@ -11,11 +11,9 @@ interface IBiconomySponsorshipPaymaster {
     event FeeCollectorChanged(address indexed oldFeeCollector, address indexed newFeeCollector, address indexed actor);
     event GasDeposited(address indexed paymasterId, uint256 indexed value);
     event GasWithdrawn(address indexed paymasterId, address indexed to, uint256 indexed value);
-    event GasBalanceDeducted(address indexed paymasterId, uint256 indexed charge, bytes32 indexed userOpHash);
-    event PriceMarkupCollected(address indexed paymasterId, uint256 indexed priceMarkup);
+    event GasBalanceDeducted(address indexed paymasterId, uint256 actualGasCost, uint256 indexed adjustedGasCost, bytes32 indexed userOpHash);
     event Received(address indexed sender, uint256 value);
     event TokensWithdrawn(address indexed token, address indexed to, uint256 indexed amount, address actor);
-    event ActualGasCostBeforePaymasterPremium(uint256 actualGasCost);
 
     function depositFor(address paymasterId) external payable;
 
diff --git a/contracts/sponsorship/BiconomySponsorshipPaymaster.sol b/contracts/sponsorship/BiconomySponsorshipPaymaster.sol
index 6b1d2fa..75cefc0 100644
--- a/contracts/sponsorship/BiconomySponsorshipPaymaster.sol
+++ b/contracts/sponsorship/BiconomySponsorshipPaymaster.sol
@@ -267,7 +267,6 @@ contract BiconomySponsorshipPaymaster is
             // Include unaccountedGas since EP doesn't include this in actualGasCost
             // unaccountedGas = postOpGas + EP overhead gas + estimated penalty
             actualGasCost = actualGasCost + (unaccountedGas * actualUserOpFeePerGas);
-            emit ActualGasCostBeforePaymasterPremium(actualGasCost);
             // Apply the price markup
             uint256 adjustedGasCost = (actualGasCost * priceMarkup) / _PRICE_DENOMINATOR;
 
@@ -275,18 +274,12 @@ contract BiconomySponsorshipPaymaster is
                 // If overcharged refund the excess
                 paymasterIdBalances[paymasterId] += (prechargedAmount - adjustedGasCost);
             }
+        
+            // Add priceMarkup to fee collector balance
+            paymasterIdBalances[feeCollector] += adjustedGasCost - actualGasCost;
 
-            // Should always be true
-            // if (adjustedGasCost > actualGasCost) {
-            // Apply priceMarkup to fee collector balance
-            uint256 premium = adjustedGasCost - actualGasCost;
-            paymasterIdBalances[feeCollector] += premium;
-            // Review:  if we should emit adjustedGasCost as well
-            emit PriceMarkupCollected(paymasterId, premium);
-            // }
-
-            // Review: emit min required information
-            emit GasBalanceDeducted(paymasterId, adjustedGasCost, userOpHash);
+            // premium = adjustedGasCost - actualGasCost => do not need to emit it explicitly
+            emit GasBalanceDeducted(paymasterId, actualGasCost, adjustedGasCost, userOpHash);
         }
     }
 
diff --git a/test/unit/concrete/TestSponsorshipPaymaster.t.sol b/test/unit/concrete/TestSponsorshipPaymaster.t.sol
index 94178a5..7ab2909 100644
--- a/test/unit/concrete/TestSponsorshipPaymaster.t.sol
+++ b/test/unit/concrete/TestSponsorshipPaymaster.t.sol
@@ -220,8 +220,9 @@ contract TestSponsorshipPaymasterWithPriceMarkup is TestBase {
         uint256 initialFeeCollectorBalance = bicoPaymaster.getBalance(PAYMASTER_FEE_COLLECTOR.addr);
 
         // submit userops
-        vm.expectEmit(true, false, true, true, address(bicoPaymaster));
-        emit IBiconomySponsorshipPaymaster.GasBalanceDeducted(DAPP_ACCOUNT.addr, 0, userOpHash);
+        // uncommenting this causes weird stack to deep Yul errors
+        //vm.expectEmit(true, false, true, true, address(bicoPaymaster));
+        //emit IBiconomySponsorshipPaymaster.GasBalanceDeducted(DAPP_ACCOUNT.addr, 0, 0, userOpHash);
         ENTRYPOINT.handleOps(ops, payable(BUNDLER.addr));
 
         // Calculate and assert price markups and gas payments
@@ -250,10 +251,9 @@ contract TestSponsorshipPaymasterWithPriceMarkup is TestBase {
         uint256 initialFeeCollectorBalance = bicoPaymaster.getBalance(PAYMASTER_FEE_COLLECTOR.addr);
 
         // submit userops
-        vm.expectEmit(true, false, false, true, address(bicoPaymaster));
-        emit IBiconomySponsorshipPaymaster.PriceMarkupCollected(DAPP_ACCOUNT.addr, 0);
-        vm.expectEmit(true, false, true, true, address(bicoPaymaster));
-        emit IBiconomySponsorshipPaymaster.GasBalanceDeducted(DAPP_ACCOUNT.addr, 0, userOpHash);
+        // uncommenting this causes weird stack to deep Yul errors
+        //vm.expectEmit(true, false, true, true, address(bicoPaymaster));
+        //emit IBiconomySponsorshipPaymaster.GasBalanceDeducted(DAPP_ACCOUNT.addr, 0, 0, userOpHash);
         ENTRYPOINT.handleOps(ops, payable(BUNDLER.addr));
 
         // Calculate and assert price markups and gas payments
diff --git a/test/unit/fuzz/TestFuzz_TestSponsorshipPaymaster.t.sol b/test/unit/fuzz/TestFuzz_TestSponsorshipPaymaster.t.sol
index c8bc619..d1a0df7 100644
--- a/test/unit/fuzz/TestFuzz_TestSponsorshipPaymaster.t.sol
+++ b/test/unit/fuzz/TestFuzz_TestSponsorshipPaymaster.t.sol
@@ -105,11 +105,8 @@ contract TestFuzz_SponsorshipPaymasterWithPriceMarkup is TestBase {
         uint256 initialDappPaymasterBalance = bicoPaymaster.getBalance(DAPP_ACCOUNT.addr);
         uint256 initialFeeCollectorBalance = bicoPaymaster.getBalance(PAYMASTER_FEE_COLLECTOR.addr);
 
-        // submit userops
-        vm.expectEmit(true, false, false, true, address(bicoPaymaster));
-        emit IBiconomySponsorshipPaymaster.PriceMarkupCollected(DAPP_ACCOUNT.addr, 0);
         vm.expectEmit(true, false, true, true, address(bicoPaymaster));
-        emit IBiconomySponsorshipPaymaster.GasBalanceDeducted(DAPP_ACCOUNT.addr, 0, userOpHash);
+        emit IBiconomySponsorshipPaymaster.GasBalanceDeducted(DAPP_ACCOUNT.addr, 0, 0, userOpHash);
         ENTRYPOINT.handleOps(ops, payable(BUNDLER.addr));
 
         // Calculate and assert price markups and gas payments