Possible Clues:

• This needed, if one's entering eastern state?
• Endorsement for a small number to visit South Africa
• Without it, excursion could get annulled at the outset
• International document
• Succeeding in travelling by showing this?
• Master-Card rival
• Travel document is required to enter Eastern state
• You can get a charge out of it
• Travel permit stamped in passport etc
• Name on a lot of plastic?