you can contact Facebook by different options such as phone mail e-mail

it will be not hard to get the account unlocked if you are sure you have done nothing wrong but do nit give your account logins to random people on the internet it will make it more difficult to get in unlocked later since it will be accessed from different ip addresses and computers why pay money if you can do it alone just try contact them.

What you are really doing is, making sure that the account gets permanently banned by letting others try to login from different ip addresses. Wait for facebook's review and follow their instructions, if you let anyone try to access it, make sure it is from a residential ip from the smae country where you would open from before to avoid triggering  further suspicion.

I am not sure, are you sure will give payments after help you.

If this account is your then i think it is very easy to open it until it is not breaking any terms and conditions, but i think OP trying to open other person account. So be carefull in giving help to the OP because he may also get in problem if OP is trying to hack other person account.

People here just want to help you to unlocked without asking some questions.

People can claim that their facebook got their hacked but in reality, they just want someone to unlocked an account they want to. Maybe stalking or something related to that. Unlocking facebook account is easy if we are the real owner, why OP will seek for services here? If OP really owns the account, then recovery will just take minutes.  I also don't buy his story about Facebook being slow in respond. 4 times unanswered is too much.

Also another thing, if you really violated the terms, even hacker won't help you or those people here claiming you can help because on facebook database you are blocked unless the one who will help you have access to those and that must be employed by Facebook.