If you haven't withdrew your RBTC yet, i would suggest you just convert it back to BTC to prevent similar problem later.
RBTC didn't have any trading pairs on Gate.io, that was part of the problem. Gate.io just lowered the withdrawal minimum and fees, but didn't add a trading pair.
I've withdrawn the RBTC and sent it to an exchange that does have such trading pairs (BitFinex). Now I can finally do business.