Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
I am getting this problem now as well and haven't found any solutions. I need new licenses for my customers. I have contacted support but it's been unfruitful. I don't know what else to do.
Try making the purchase on your phone, it worked for me. I tried every browser on PC, clear cache, cookies, restart, nothing worked.
On a whim, I tried using the safari browser on my iphone and it worked. Worth a try, good luck.