Matrix Sim Cards—Good services !! Hi, I had used a matrix sim card very recently and for the very first time when I was traveling to London alone, to see my cousins. My mum didn’t want me to go without a phone or actually ask my cousins for one. Since she’s used matrix services a lot of times for her work travels, and she feels they are reliable so got me one. I really liked the idea of having unlimited data on my number, calls I wasn’t worried about coz mum was calling me all the time. I loved being connected with matrix sims. My friends literally saw London with me, the museums, harry potter museum and what not!! For me matrix sims is a really cool way to stay connected with your friends and make them a part of your vacationJ