Sorry, English is not my first language. I said on your thread:
" I can trade the Durant and Ditto for the Torchic and one credit on your thread, if it is ok to you"
Credit is like a currency I guess:
"Credits = This is similar to how money is used in real life. You use up credits in exchange for Pokemon in a user's trade thread."
So when I ask for that credit I have on your thread, I will give that mantyke back, if it is ok.