How can I update my UK apps in the US?

[Koofa]

Hello everyone, I'm hoping someone can help me out here.. I'm not sure what happened, if it was a recent update that ruined it all or what, but I used to be able to switch between the US and UK app stores with no issues. I'm in the US, live in the US, never had a UK credit card, but when switching to the UK store in the past (months ago), I never had an issue doing so and downloading UK apps and such. Up until 2-3 months ago, I had never had an issue. Then all of a sudden it started requiring me to enter payment information (it never did this before, the only thing I had to do to switch to the UK store was enter a UK postal code - it would allow me to leave the credit card/payment information blank), and since I don't have a UK credit card, I can't go to the UK store anymore and can't update any of my UK apps. Some, I'm not able to use if they aren't up to date with the latest version. How can I resolve this issue? Is there any way to do so without a UK credit card? And does anyone know if the reason behind this is a newer update that caused it?