I also laughed when I saw their response, As i had an idea of what was really going on. Overall it cost me 22 transaction fees and 5 hours to send and structure 50,000 CAP yesterday. It has also paused my buying of CAP until they hopefully can fix the problem.
I feel your pain. Filed a ticket for the same issue back in early November. Back then they claimed the problem was 'fixed', test failed, updated ticket, fixed again...then it was intermittent enough that now I just consider it 'block tax'.
...so when is Stakeminers officially adding BottleCaps?