1. Credit cards validation (check all major cards if entered correctly as they require and also cross check between Credit Cards and Debit Cards, such as Visa and Visa Electron, MasterCard and Maestro). Remove spaces if any.
2. Card Holder Name field check (filled in or not)
3. Security Code field check (filled in or not)
4. Security Code check (ie. AmEx should have 4 digits, others 3)
5. Expiration Date check (alert if older than today)
Please contact with me to discuss details.