Hi,
If you can manage to persuade your bank manager, convert to an OFFSET MORTGAGE. The bank gives you something like 80% of the value of your house. You use part to pay of the previous morgage, and put the rest into an OFFSET SAVING ACCOUNT.
Then you draw some cash out of your OSA, to pay off your credit cards. And do the same every month. OK, you pay interest on the money you have drawn from the OSA, but its at your mortgage rate, not the credit card rate.
The bank take into account every penny of yours that they are holding, and don't charge interest on a similar amount that you owe them.
We still owe our bank about