I think freebitco is very dubious. if you lose the 2fa you have no chance to get back and you lose all btc you have paid. the supporter asks for deposit address signature. but that's not because I've entered the wallet btc from coinbase and xapo. How do you get your account back? I have new cell phone, because the old kapput is and no access to 2fa. that's been 2 years ago. Unfortunately, I'm stupid and have my cellphone number not registered.
How is that dubious?
I'd rather call it your negligence. If you don't know how to use 2fa and what it may lead you to (read, funds being no longer accessible) in case you lose your phone, just stick to old recovery methods like email. Other than that, I don't understand how losing your phone can prevent you from accessing or restoring your access to a site as losing a phone is not equal to losing your phone number. You can easily get it back even if you don't lose your phone at all but your SIM card malfunctions