As Recommended already -- it is easy to take a Van or Bus to Mukdahan Thailand -- Cross over the bridge and get to Savannakhet Laos... No need for a service... If you have all the required documents then it is not be a problem Thailand Consulate in Savannakhet has processed thousands of Non O Multi Entry for Marriage
Yes it does but my point is naive people sometimes think that they have no obligation to do anything and also know nothing of the general requirement to report. The young American veteran who just rented my upstairs apartment went 37 days over - he said he never knew he had to do anything. He is by far not alone
I have read reports of people with O-A Visas who prefer the Border bounce method for what ever reason. Some just like the idea of not having anything to do with the local Immigration office