For US customers only: Rx Megastore is backed by a 7 year old company and the prescriptions are filled by a US bricks and mortar pharmacy. They accept credit card payments. Please note that tramadol is now a schedule IV controlled susbstance in the United States so purachasing this through this store may be illegal.
They will not ship tramadol to states that control tramadol, which at the moment is: Arkansas, Tennessee, Illinois, New Mexico, Ohio, West Virginia, Kentucky, Wyoming, Mississippi, North Dakota, and Oklahoma. If you live in those states then eHealthRx.com might be an option for you, it is based offshore but run by the same company as RxMegastore.com.