So my line was recently cancelled and I planned to start a new plan, however just to be sure I asked a sales rep if my number and upgrade eligibility would carry over to my new plan and was reassured that it would. But, once I went to see what plans I was eligible for it said my SIM card was uneligible to be used. I have heard that if you cancel an account, the SIM card becomes unusable. Basically, I wanted to see if this was true and if I was to get a new SIM card if my number and upgrade eligibility would still carry over to my new plan. Thanks ahead of time.