What are the best strategies for obtaining a work visa in Thailand when funds are locked in an ISA?

Since I read you have a Stocks and Shares ISA here is what I would do.

Sell all your shares which has no tax implications for you with it being an ISA

I would then transfer the funds to your bank account and then generate a statement for your application and wait till it's approved ( London Embassy doesn't need it sat there for long )

Once you have confirmation transfer the money back into the ISA and buy back into your shares.

** if your ISA account restricts you redepositing due to maxing your 20k for the year, transfer it to one which doesn't. For example trading212 allows you to withdraw and redeposit with no issue.

The London embassy told me they would deny my cash ISA. But they only need proof of the money in your account at the time you apply. So you could potentially borrow money for this, that’s what I did.

The purpose of the 500.000 is, that they should be readily avaiable, in case you need to instantly pay ie. a hospital bill after an accident.

So if you can’t do that, you may be asked for more / other documentation, or be rejected, which means your 10.000 Baht visafee is lost.

Isn’t an ISA considered a bank account?

I don't know if a boyfriend is allowed to be the sponsor. So far I've seen sponsors being only family members or the company you work for.

I applied down the savings route, joined PDFs together and added a note saying I keep my funds separate to my current account. Worked.

Worth reaching out to the UK Thai embassy 1st, I only say that as I applied from Spain, even though I am UK citizen.