How can I get a visa for my girlfriend from Pattaya to England, and what are the costs involved with agencies?

Take her to Japan instead. 15 days visa free. She will enjoy it far more

Dont

Sorry mate I’m from the USA 🇺🇸 it’s hard for us as well

Does she have children in Thailand , mum and dad and family . Does she have a job (no problem if not) .

We did it earlier this year and 6 month multi visa gained . We provided many photos , convos from WhatsApp phone records . Money transfers etc . Plus a letter stating I will provide a house and funds etc

Very difficult mate, unless she has cast-iron reason for returning to Thailand. Proof of a job, pay slips etc. Family, property etc.

If she has a normal tax paying job it's easy.

If she's a bike rack that works at a bar, different story.

I have just recently moved to live in thailand as for the last two years, I tried four times to get my thai wife to come visit the uk it wasn't until the same information going through my local m. P because they were just denying for fun and off record. I was told keeping the numbers down on foreign people in the country because they can't control the boat people coming in it was only then when she got involved. And contacted the Home Office with the same information. Did I get a visa?

So even if you have the right amount, financial, good reasons like my wife to businesses a farm. And a young brother, she looked after she was being denied until the mp got involved.

And as they put the price up To now thirty eight thousand a year, earnings for her to be and stay.It's a lot better and cheaper to come.And live in thailand which is what I did on the 22nd of October. I wish you luck

An agent can only help you pull the information together in support of the application, they cannot get one like like can for thai visas in country, they have no influence over the outcome. Suggest you start by having a look at the uk visa website for the requirements to give you an idea of what required, she will also have to go to VFS in bangkok or chiang mai for biometrics at the point of application submission

Join a Facebook group “UK Visa Information Thailand”

People with prior experience can help you there. From what I gather it’s difficult to obtain unless your GF has strong ties to Thailand and therefore proves she’d be coming back.