check this picture, I sent only 0.21 BTC, my wallet still have 10.999
I think I know whats wrong, Just like in my BTX desktop wallet I have 3 different addresses that I deposit to. I have all 3 registered on the airdrop list. You may have 10.99 BTX in one wallet, but not in the wallet you have registered. Go up to RECEIVING addresses and register your other addresses that have a positive balance of BTX.