What is the safest way to sell gold?

[Cenariusbr]

Hi, i make my gold in legit ways (order hall / AH / snipping / herb / etc) and i sell most of the gold i make via Gbank, ginvite someone, allow them to withdraw X ammount, done.

From what i heard and searched, this is the "safest" way to sell gold, right? If i get caught, would i get perma-banned or more likely to get suspended? if so, for how long? any tips on selling gold?

I usually sell around 1-5M each week, usually for 3-4 people getting 300k or more, don't think i ever sold more than 5M in one week.