you set the currency accounts up. Dollar, baht, GBP etc. You then buy/convert GBP from your baht account. Go to your GBP account and then transfer it to whichever bank account(s) you have setup with Wise. I have multiple bank accounts and multiple currency accounts. Very easy to do.
Be careful. Some IO will check your bank book to see if you met the criteria for the year prior. My advice to break your agent contract, get a new bank account and start to build up your 65k a month income or your
Use an agent my friend. Simple and hassle free. Keep your wedge in your high interest account at home. No probs with good reputable agents. Make sure you have a trusted UK address for obvious financial reasons. Good luck.