Yes that's exactly what happened to me. I went to 2 borders though. The first border was at Baan pakard. They refused me and said I had to go to poipet where I was also rejected. So my exit stamp was cancelled twice! I hope this doesn't affect my likelihood of entering Thailand via air. Flying tomorrow. Fingers crossed!
thanks for confirming. I had no idea and was completely taken by surprise by this. Do you (or Tod Daniels) know how long I would have to stay in Cambodia before being let back into Thailand through the land border? I like to do bike trips sometimes