I have a Azure subscription where the country is India. Now my partner in USA is going to pay for the subscription going forward and has his CC details. However, I am unable to change the country and therefore forced to use the Indian credit card. I wouldnt
want to add another subscription as it might not link to the existing VM payments. Please advise.
I don't think it's possible and the only option is to create a new subscription. I had the same problem. When I signed up for a subscription I was in the US and then I moved to India. I tried to change the credit card information (from a US credit card
to India credit card) but the portal did not allow me to change the country in the billing address.
I ended up raising a support ticket for that and they told me that it's not possible. Because of "legal" issues, country on a billing address can't be changed. I left that at it and ended up creating a new subscription.