I tired Contacting the support as my SIM card didn’t work and they never came back to me. It has been over a day when I’m in Vietnam with no data. Had to buy a regular SIM card instead, couldn’t wait longer for the support. In Vietnam specifically, it’s cheaper to buy the regular SIM card than this one. It’s about 10$ cheaper. So don’t recommend if you wanna start using it right away or if you wanna use it in Vietnam