I've just seen this exists.
First video I've pulled up and the poor woman was crying the hospital as the balloon was causing her pain and turns out it's stuck in her bowel. She has to have surgery and is terrified they will have to take some of her bowel and will be missing her holiday.
It's such as shame that so many struggle with their weight and these dangerous procedures seem to be profiteering from vulnerable people who desperately need help to lose weight. I wonder if she knew this was a complication.