Well, one bank in each country at any rate.
The structure of the banks is a masterpeice of plausible deniability and faux competition. In the centre we have a central bank, and then it's immediate franchises, then their franchises, then on down to the local high street bank.
The local HSBC is a branch of the Bank of England. So is it's apparent competitor accross the street, the Natwest, Barclays or whatnot. This is poorly understood by the people who work for these organisations, this hydra like system.
What is also rarely understood is that all the money remains the property of the issuing bank at all times. You and me just get to use it. Again, what people think is happening and what is actually occuring are light years apart - this is the sort of creative misunderstanding that banking thrives upon.
What happens when we take a loan out of a HSBC branch and it then gets deposited at..say...a Natwest branch?
It has been returned to it's owner. Now there is no debt.
Everyone who is repaying a mortgage or a loan or a credit card bill is working for free at the direction of the bankers.