This question is for the customers (not like an employee of MM will answer any questions). When you purchase a 3-in-1 SIM Card Kit, will your phone number change every time you activate a new sim card? I was given a (temporary) number when I activated my 7-day trial sim card, then when I activated the 2nd sim card I was given a new number. Will the 3rd sim card give me another number? Also, what's the 3rd card for?