Insurance companies will generally give a refund on each remaining full month plus a cancellation fee, which might be equal to one month's amount. You would need to look at the T&C of your policy under "cancellation"
I was trying to give some friendly advice. Wise wanted my home country address which ties in with my bank account. There's a huge worldwide clampdown on bank accounts, all to do with CRS and Money Laundering. Good luck giving a Thai address on a UK bank account. I'm sure that won't raise any red flags