Visitors from outside Thailand who want to visit the country must first get a Thailand Visa. However, the Thai government has waived visa restrictions for nationals of some nations in order to enhance tourism or diplomatic ties.
In addition, nationals of a limited number of countries may apply for a Thailand Visa On Arrival, however they are not exempt (VOA). There is no need for them to visit a Thai diplomatic mission to get their visas.
To be eligible for a visa upon arrival, one must meet the following requirements:
Travelers holding passports from the following countries do not qualify for visa exempt entry, and must arrive with a visa, or apply for a Visa on Arrival.
For the fastest Visa on Arrival process you can use Thai Visa Centre to provide you with Fast Track, and express VOA services to ensure there are no delays.
You can request this service HERE.
You can message Thai Visa Centre over their 24/7 @LINE Support Account.
While @LINE is their the best form of contact, you can still easily reach them by EMAIL as well.