you can as well use the official tm30 from immigration. They improved it a while ago and it is easy to do. The first time I used it after having applied for a userid and pw I had to supply copies of my wife's Thai id and housebook. The web site tells you that - no problems
I was asked by my Danish insurrance company that transfer my private pension to my Thai bank account for a Thai tin number. I got that from a local amphur. It was obviously the 1st time they did that
it's an retirement visa - not very likely to have an employer π π The Thai embassy inβ Denmark for example says it clearly : "being over 50 and retired"