Why not exchange USDC to PayPal instead of selling the wallet file, according to the agreement, you are willing to bear the gas fees and the price is much lower than the USDC value, so why are the seeds sold?
So, the best thing is to bear the fees or wait until sometime for the fees to calm down and do that transaction.
Most likely, wallet seed linked to a fast bot that will withdraw the gas fees when you deposit ETH and will reverse the PayPal transaction. This scam may work and make a few dollars, but is this worth?