IRS letter

My tax person messed up our 2022 tax return and we received a letter saying we owe money. A lot of money. My husband does ride share as a side job.  My tax person failed to submit his ride share tax information.   I called the irs and they told me just to fill out the schedule c form and submit any documentation and just wait to hear back from them.   My husband decided to have one of his friends who is a cpa file an amended return and re do the taxes and re submit .   Do we still pay the taxes that the irs says we owe or wait to hear back after everything is filed from the 2022 tax?   We don’t have the money to pay that large sum.