How can i add payment method to my pc since it doesnt let me add any payment methods

Hi Angjelo,

To further check, did you add the card details via your Microsoft account through this link: https://account.microsoft.com/billing/payments?

If yes and both accounts you tried to account the account to is getting an error, I highly suggest to get in touch in live Microsoft Support agent to further assist with this. Kindly note that this community is composed of fellow Microsoft users and we are not Microsoft employees and do not have access to tools or systems to review transactions or account details.

To do that, you can refer to the steps below:

1. Go to this link:  https://support.microsoft.com/contactus and sign in your Microsoft account
2. On the "Tell us your problem so we can get you the right help and support" - just type "Billing issue" then search
3. You will see Recommended Solution, just scroll down until you can see "Contact support"
4. Under "Tell us a little more about your problem", select "Microsoft 365 and Office"
5. For Category select > manage my subscription > then confirm
6. Select Chat with a support agent in your web browser
7. Confirm your account and you should be routed to Microsoft support representative who have the appropriate tools and resources to investigate and assist you further with the billing concern.