Just a quick summary of my border bounce yesterday at the Chong Chom border, OK after a 5 hr drive from Saraburi arrived and parked the car in one of 2 car parks on the left Hand side right before the border crossing , walked to the immigration exit and spoke to the officer about me returning straight back in after stamping out he spoke to my finance who was with me and he said should be no problem, so we both exited and walked over to the cambodian entrance and I filled out the form paid 2000 bhat had photo taken and had the sticker placed in , went across the other side in front of the casino resort to the exit got stamped out , this all took 30 minutes , then went inside the casino complex has a milk tea with the Mrs then bought some duty-free rum 😀, went to the Thai entrance filled out the form forgot the Name of it the immigration guy looked at me and said to me I just spent 2000 baht for 2 hrs and then said how much will I pay him for 30 days laughing while he said it, he explained to my Mrs don't bother going to Saraburi immigration to do the tm30 and he gave her the on-line url to do it , so after being stressed because of all other things going on this turned out to quite pleasant except the 12 hrs of travelling 8 of it driving.
A big Shout out to Tod Daniels thank you you advise is invaluable thanks Tod.