Can the 45-day visa exemption in Thailand be extended?

A discussion on whether the 45-day visa exemption in Thailand can be extended reveals conflicting information. While the official stance from some embassies, like London, suggests it cannot be extended, several users report successful extensions through local immigration offices or their respective embassies. It's advised that travelers research and verify current policies, as different embassies may provide varying information and the immigration process can differ among offices.