When using Stripe for payment processing, customers may be prompted to enter their phone number for customer service purposes. This is because Stripe requires valid and up-to-date information on their account to prevent account cancellation. However, it's important to note that our fulfillment team only provides email and chat support, not phone support. Stripe may ask for a "customer support phone number" for verification purposes, but this number won't appear anywhere and is rarely used. In fact, 98% of our subscribers never receive any calls or support inquiries.