    address user,
    uint256 epoch,
    uint256 balance
  function setPendingRedemptionBalance(
    address user,
    uint256 epoch,
+   uint256 oldBalance    
    uint256 balance
  ) external updateEpoch onlyRole(MANAGER_ADMIN) {
    if (epoch > currentEpoch) {
      revert CannotServiceFutureEpoch();
    }
+   require(oldBalance == redemptionInfoPerEpoch[epoch].addressToBurnAmt[user],"bad old balance");
