Not so. I found a copy of the TM 30 that she submitted 4 years ago. What I have said previously is that my wife has been given forms to fill-in while they processed my application. However, I did not know what forms these were but guessed they may have been a TM 30. This year I have filled in the TM 30 and I will report back after my visit next week.
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To take up on a point made by @CO_CO, "I think you will need a bank letter (standard letter confirming that you have an account);
other immigration offices have asked for a bank letter CERTIFYING that you receive 65,000 Baht p.m."
I have a Passbook, therefore I have an account. As to certifying my income, I do not know how the bank can or would want to provide such a letter. Previously, I have had to talk long and hard to persuade a sub-manager to certify that I was still alive and kicking (Pension Life Certificate). He really did not want to put his name and a stamp to that. To ask him to certify that I transfer in excess of 65,000 baht per month, for the previous 12 months, is to my knowledge asking the impossible. Firstly, such information is not available in the local bank. I applied for my 12-month bank statement at the beginning of the week, Monday morning, in the Bangkok Bank at Robinson's. I had to produce my passport, bank passbook and she also took my yellow tabien baan. All were copied. The charge is 200 baht for the statement. She then told me to return in one week, next Monday, to collect the statement. This is pretty much par for the course as the request has to go to Bangkok, Head Office, where I understand the statement is printed before being returned to Surin in the company mailbag. In past years I have highlighted each transfer from the UK on the statement and made a tabulated spreadsheet showing the total for each month and a summary for the year. This has been accepted previously by Surin Immigration. I don't see a bank manager in Surin going to this trouble to identify the funds transferred each month and, more to the point, I do not believe he would certify that I transfer in excess of 65,000 baht each month. Nor would he put his name to the letter to state this to be a true (similar to the old Embassy Letter). It would be "more than my job's worth" to quote a favourite saying.


P.S. My annual statement usually runs to 12 pages or more.