Customers type their postcode or area at checkout. "TS1" covers TS1 1AA, TS1 2AB, etc.
Sign up free at stripe.com → Dashboard → Developers → API keys. Test keys (pk_test_/sk_test_) let you try it with card 4242 4242 4242 4242, any future date and CVC. Swap to live keys for real payments — funds pay out to your bank automatically.
