After a certain amount of stamps, they want you to get your stamp.Your Visa from the Thai embassy outside the country and come back.So you gotta take a weekend and go somewhere
Whatever anybody says on this thread or on Facebook is irrelevant.You don't even know if they're up to date and things change from day to day sometimes in thailand. Talk to immigration and tell them what's going on and ask them if it's OK, it's pretty simple, not rocket science don't overthink it.
Messaging app to do it for free.I used WeChat line and WhatsApp for 2 years.And you can also if you need to call at 800 number.You can use skype for free.