Bitcoin transaction stuck since almost 3 weeks
Your transaction has 428 confirmations. Some services are satisfied with one confirmation, while some require up to six. Anyway, with over 400 confirmations, it's clear that Bitfinex has received the deposit. If you haven't been credited for it yet, I suggest that you check that you have sent to the correct address, and then if that's the case you reach out to Bitfinex to have them remedy the missing deposit.