What are the requirements and current process for extending my tourist visa in Sa Kaeo, Thailand?

I went to Sa Kaeo immigration this morning for my 30 day tourist extension to my 60 day visa with the required photocopies of my documents, photo plus my TM30 receipt. I was unable to get the extension issued without copies of my wife's Tabien Baan house book and her father's ID as head of the household despite me having provided these previously there when I did my TM30.

It was resolved when the required documents were photographed and sent by phone and the immigration officer copied these to her phone and got them printed for us.

This is just a heads up for anyone else using Aranyaprathet (Sa Kaeo) not to get caught out and possibly having to make two journeys for something which normally takes 20 minutes to complete.

I would also add that the whole process this time took well over a hour so, again, be prepared. Not as easy and straightforward as it was just under 12 months ago when I last did this. I was also required to sign the Overstay Acknowledgement this time, last time I was told it's not required when I asked about it.