These data bundles exist in our country thanks to hackers and programmers. They are sold through codes and at a very cheap price compared to the normal rates by GSM providers who are also our internet providers. They really help us since the normal rates by the providers and wifi routers are very expensive for an average citizen.
Cracked internet bundles are also being sold in our country, that was before I think since internet providers learned that some technicians are doing the deed (which is illegal) that's why they tighten their security with their programs so that technicians won't be able to hack their routers. It was being sold at a very cheap price as well with no monthly bills, all one time payment. However, there are also some people who sell these internet bundles and promised that you can use it for a year but you'll only get to use it for 3 months or less.