Cannot Purchase Spotify Premium—Payment Page Errors Constantly

I have been trying to subscribe to Spotify Premium, but I keep getting error messages every time I attempt to complete the purchase. I don’t want my membership to expire, yet I can’t find a way to renew it.

When I try to access the payment page, it either doesn’t load or redirects me to a blank screen, then immediately kicks me back. There’s no option to proceed, and I haven’t been able to fix this issue.

Spotify, please resolve this problem immediately! I need my Premium subscription renewed, and I expect a fast response. How can users pay for a service if they can’t even access the payment page? Fix this now!