I am insured via a packaged account with nat west, it's £12 a month I think and I had to pay an extra premium of £90 to cover PC but that gives me worldwide for a year including PC. I did a 5 minute telephone q&a with them. It's the second year they have renewed on that basis. The only questions that seems to matter are, how often do you go to the hospital for check ups/ treatment ( mine was monthly at the time) and is the cancer terminal ( whilst you could say I am with metastatic PC, my onco says that definition only counts when there is no more treatment to stop the cancer growth so as my PSA is under control then I remain covered). I think other banks do similar accounts too.