There are several reasons why bet365 accounts can be restricted, including matched betting, unreasonable betting behaviour, GamStop (self-exclusion), and exploitation of bonuses.

bet365 is legal in many European countries (including the UK, Germany, etc), the US (only in New Jersey, Colorado, Ohio, Virginia, Kentucky, and Iowa), Canada, a lot of Asian countries (Japan, Thailand, Singapore, etc.), and Brazil. Select a server in your home country and connect.