Hi guys ! I’ve been with Koodo for few months now and I renew month to month with them, last week I decided to get a refurb phone from them online with the same plan and phone number I’ve been using. I Just got the phone today and it comes with a new SIM card. I already have one that I’m using with my old phone , do I really need to use the new SIM card they sent me to activate my new phone or I can use my old SIM card ? What difference it will make ?