Can I extend a 3 month education visa by going immigration within Thailand and get extra 30 days? Original visa was 3 months. How ling extension can I get?

Visas are not extended.only a permit to stay from one can be extended.

The longest extension you can get is 7 days unless you are attending a school and can qualify for an education extension.

No!

The most you can get is 7 days during which you must leave the country

But a 30 day e

Visa exemption can be extended 30 days. Are you saying I can only get 7 days extension with my 3 month visa?

I thought new law stated any entry could be extended by 30 days for 1900 baht?

A non immigrant visa can only be extended for a specific reason. There is no rule that allows for a 30 day extension of one.

You can apply for a 7 day extension, pay 1900 baht and be given 7 days to leave the country.