And fyi, if you have dogs or cats they won't even ask for health certificate or wtv at O'Smach border. It's a very chill and easy border. Yes, 11 guesthouses seems about right. Probably a bit more not on google.
I've been to O'Smach a few time with my wife and our dogs. Nothing weird in spending the night there for a border bounce. I always see other foreigners went I do it. It's not crowded so it's a great option.
Usually mid-way through the 30 days you can, and you need to show up in person. The extra 30 days will start counting after the first 30 days expire. So if your original 30 days expire June 14 and you go tomorrow, you will be stamped until roughly July 13.
So how will a fixer or border company run help then? They can still deny you. No they can't. These schemes are money grabbing targeting scare foreigners. Worse case... If u get denied, then use a company... but you don't have to use it if u don't need it
You are creating fear mongering in situations where people want practical advice. And u are also exaggerating the risk based on intuition rather than reported data.