I think ringing up would be your best idea to confirm any gap you may need to pay. I must say that part of the process is such a blur that I honestly don't know what I paid.
I was diagnosed with invasive ductal carcinoma in May last year and have had a mastectomy, chemo, radiation and am now on tamoxifen to stop any cancer cells that may try to use estrogen to reproduce as my cancer was positive for estrogen and progesterone.
It is not an easy journey but you get through it one step at a time. There are lots of good days as well as the bad ones along the way. Now I feel that life is good again and I have a new appreciation of how special so many everyday things really are! Hope things go well for your surgery and keep in touch. Take care. Deanne xxx