I recieved a form 13873-T from the IRS stating my address doesnt match their records. I recently moved. What can I do to fix this?

Also, I recently received a Form 1098-T from my college. Block 2 has $1,935 listed as my expense and in block 8 there is an "X" indicating I was at least half-time. Can I add this to my taxes to get the education tax benefit?