I don't know exactly how to place a bet on Melbet in Mongolia for table tennis, but you can search YouTube and there should be a video. And how to register on the site is well described on their website melbet-mn.org , you can read it. Or watch how to bet on any sport and do it for table tennis by analogy, I did it. The Mongolian national team will also play there, right? Who are you rooting for and who are you going to bet on?