Fix Claude AI Payment Issue

I’m trying to upgrade to the paid Claude AI plan but every time I reach the checkout screen the credit- or debit-card payment simply refuses to process. No error code appears, the spinner just hangs and the subscription never activates... (Budget: ₹1500 - ₹12500 INR, Jobs: API, eCommerce, HTML, Payment Processing, PHP, SaaS, Stripe, Website Design)