Tried the HDFC trick from outside India got stuck at phone verification. Amazon blocked my +44 number as “non-local.” Needed a clean Indian virtual phone number fast. Used 7sim.cc/en/, picked a fresh +91 from Delhi. Numbers are updated daily, so it wasn’t recycled spam. SMS arrived in the browser tab while I was on the payment page. Didn’t have to install anything. Got my free year of Kindle Unlimited no CC, no real number.
