Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Greetings!
This is Tin, sorry to hear that you're unable to pay your subscription with your new payment instrument. Have you tried to use other browser and check if the issue persists? Or how about clearing cache and cookies? To do that, please press CTRL +SHIFT +DEL then choose the Cache also Cookies, then hit Clear Now. If the issue persists, please try to use other device. And if it's still the same, kindly reach MS Accounts & Billing to check this:
Kindly open this link: https://support.microsoft.com/en-us/contactus/
Ensure that your MS Account has been signed in
Type "Chat with an agent" and hit Enter.
Please click the "Contact support"
Please select the "Products and services"
Please follow the prompts to connect with a live agent.
You may also choose the "Call me back" option if you prefer to receive a call.
Once you're connected to the Live Agent, please let them know about your issue so they could check your account and address your concern.
Thank you,
Christine