I'm looking to apply for a tourist visa from the Thai Consulate, Liverpool in December (this year). Am I able to apply for a 60-day tourist visa, single entry?

Also, I am slightly confused as the Thai Consulate website states that the visa is valid for 3 months (meaning from date of issue?) or that I am able to stay for 3 months once I have entered Thailand? Thank you.

Website here:

Good day,

Has anyone ever applied for a non-b visa at the Thai Consulate in Liverpool, U.K before?

If so what was needed to apply? And how long did it take to process? I have had a look at their website but it only states a letter from your employer is needed, but I would think a little more than that must be needed, right? Also it does not state how long it takes. So does that mean it will be ready on the day?

TIA!