There have been changes to the Government and quit collecting 30 baht later invoked in parallel "gold cards" because they don't need to pay even a single baht for service.
Have a change of government and the dissolution store 30 baht later called parallel as the "gold card" does not have to pay even a single baht to attend the service.
The government changes and have stopped keeping 30 baht. At a later time run parallel in the name "gold card" because you don't have to pay a cent in access to services.