It sounds like you are confusing two issues.
If the IRS is asking for proof of payment of education expenses, that has nothing to do with EIC. There are some cases where the college sends a 1098-T showing "amount billed" instead of "amount paid" so the IRS wants to know how much you actually paid with your own funds or a loan in your name.
Separately, they might or might not be looking at your EIC claim. But your question seems to be missing some important details.
