I was on Paxful trying to get my Bitcoins off and it had a option for backpage "how to send backpage" I clicked it. Followed the directions and it sent 10$ to the account I registered for back page and now I don't know where the coins are or how to get them back. Says I have 10$ credit. I don't get it
Not clear still why would you send money to someplace when you don't know what they are.
As you said the Paxful website you found the link to backpage, and you opened an account in backpage, how can you do so without knowing what it is and why you are sending money there again without knowing why you are doing so ?
Looks very childish. No other option but to contact backpage and figure out with them.