I’m not sure if Thai has the “Net Neutrality” issue or has heard about it. It’s a real problem in America and Canada (probably in Europe too). Although this situation hasn’t happened yet, but they are trying to pass the bill (law) of Net Neutrality to protect from unfair ISPs.
Basically, a ISP limits the amount of bandwidth of internet usage. This picture explains a lot.
If we want to access to Youtube, we have to pay $49.99.