pub fn reverse_simulate_swap_operations(
    deps: Deps,
    ask_amount: Uint128,
    operations: Vec<SwapOperation>,
) -> Result<SimulateSwapOperationsResponse, ContractError> {
    let operations_len = operations.len();
    if operations_len == 0 {
        return Err(ContractError::NoSwapOperationsProvided);
    }

    let mut amount = ask_amount;

    for operation in operations.into_iter().rev() {
        match operation {
            SwapOperation::MantraSwap {
                token_in_denom,
                token_out_denom,
                pool_identifier,
            } => {
>>>             let res = query_simulation(
                    deps,
                    coin(amount.u128(), token_out_denom),
                    token_in_denom,
                    pool_identifier,
                )?;
                amount = res.return_amount;
            }
        }
    }

    Ok(SimulateSwapOperationsResponse { amount })
}
{
  "reverse_simulation": {
    "ask_asset": {
      "denom": "uusdc",
      "amount": "990000"
    },
    "offer_asset_denom": "uom",
    "pool_identifier": "om-usdc-1"
  }
}
{
  "offer_amount": "1000000",
  "spread_amount": "5000",
  "swap_fee_amount": "3000",
  "protocol_fee_amount": "2000",
  "burn_fee_amount": "0",
  "extra_fees_amount": "0"
}
let res = query_simulation(  <--- This is WRONG! Its using forward simulation
    deps,
    coin(amount.u128(), token_out_denom), 
    token_in_denom,
    pool_identifier,
)?;
pub fn reverse_simulate_swap_operations(
    deps: Deps,
    ask_amount: Uint128,
    operations: Vec<SwapOperation>,
) -> Result<SimulateSwapOperationsResponse, ContractError> {
    let operations_len = operations.len();
    if operations_len == 0 {
        return Err(ContractError::NoSwapOperationsProvided);
    }

    let mut amount = ask_amount;

    for operation in operations.into_iter().rev() {
        match operation {
            SwapOperation::MantraSwap {
                token_in_denom,
                token_out_denom,
                pool_identifier,
            } => {
-                let res = query_simulation(
+                let res = query_reverse_simulation(
                    deps,
                    coin(amount.u128(), token_out_denom),
                    token_in_denom,

                    pool_identifier,
                )?;
-                amount = res.return_amount;
+                amount = res.offer_amount;
            }
        }
    }

    Ok(SimulateSwapOperationsResponse { amount })
}
