What is the experience like at Khon Kaen Immigration for residence certificate applications?

So thanks for the replies on my past questions, very helpful.

My experience with khon kaen immigration and banking was long but not bad. We went to immigration (which is in the middle of nowhere 20 minutes north, don't know why.)about 945am, pretty quiet.

I just wanted a residence certificate for banking and drivers license. The copier lady on the 2nd floor was helpful, we had to go to the 90 day checking room first, I guess they verify you are valid or something. I already had a tm30 filled out with my sister in law signature. Copier lady made a copy of my passport.

Went into the 90 day room and dropped my packet in the inbox. An older civil servant picked it up, looked at it and handed it to the other worker. About 15 minutes later she called us up and asked what I wanted, then she gave us a couple of receipts and directed us to the main waiting room. Went to the guys at the info desk and they directed me to give my packet to the first lady officer. Nice looking older lady, but I don't think she is able to smile, the earth might stop moving 😄. The officer looked at the packet, gave it back to us with an application for the residence certificate. We filled it out and sat down to wait. An older female civil servant walked up to us and looked at the application, said she needed 500 baht and disappeared. Came back a few minutes later and gave the packet to her underling. 15 minutes later the underling came back with both certificates. One thing I will say about the older civil servant lady, she was extremely helpful to a couple who had filled out some of their forms incorrectly, so patient and understanding. Everything there is very professional, the only thing I have to say is that some of the Falangs just come in, ripped shorts, flip flops and crappy t shirt. At least try to look professional, throw a nicer shirt on and clean shorts, it's kinda embarrassing.

Next, went to the cell phone store in Central plaza, got a cell number in my name with receipt, easy.

Walked into K bank in the same mall. Opened up an account there. I had a new girl so it probably took 3 times longer. Only thing, they wouldn't let me use usd to open the account, I had to use baht. They said I can only transfer 50k per day, but hopefully that is withdrawal, I need to deposit 800k very soon and 50k per day is painful.