I finally got my refund from them.
Not using them again.
And I suggest no one bothers to fund their AdvCash account via Bitcoin.
When was your last contact with ADV and when did you receive your refund?
Over the weekend I got a reply from them. They reply fast to "sales" queries, but very slow to money problems

Check my post history for my issue (it's Bitcoin deposit related).
Looks like to me AdvCash are Russian (?) but using Belize company to trade.