I had a very similar situation to Max.
Medical start of Sept
CC expiry end of November
Letter informing me of the problem February
Rang to pay, no answer, and left messages 2 times through March
Received second letter in April to say if I didn't pay it would be given to Debt Collection Agency
Rang and left 2 more messages (again no answer)
Gave up and went for the snail mail payment option
CC debited in May
BTW They never bothered returning any of my calls, I guess they are so flat out.
$130 for 8 months work - that's good value for money!!
