i dont trust other exchangers
You don't trust exchangers, no one believes you... Great chances for doing deals and building a trade network
max 1 week (7 days) after get BTC
generally 3 days ill return back
It's not the clearest thing that you wanted to say here, but I assume you are aware that you will have to send $550 to escrow first and only then receive BTC.
Otherwise, what you have written so far is quite confusing, when it comes to loans and trading, you need to be much more precise and clear.