@Graham *****
Yes, you are right. Got the information from Royal Thai embassy in London.
Financial evidence with fixed deposit of no less than 3,000,000 THB or no less than 1,800,000 THB together with monthly income of no less than 1,200,000 THB per year in Thai bank located in Thailand
- Your bank statement of Thai bank, showing your name with a minimum of fix deposit of THB 3,000,000 remained in your account for no less than one year. UK and other national bank account are not accepted.