I asked coinpayments.net (our payment processor gateway)
Nope, we do not know when, the ETC needs to settle down as it was 51% attacked and account balances are not 100% sure.
Please use for example changelly.com to convert ETC to ETH and use ETH account or just exchange in your exchange and send ETH
We have our hands tight as it is not up to simplemining at all.