I bought an unlocked lg stylo 4 from best buy because I wanted to add it to my account using the same phone number as my previous phone. The phone didn't come with a sim card and when I got to activate the phone (swap) using the IMEI code on the phone, it says that it does not recognize the device. Do unlocked phones bought from other stores (like best buy) even work with Virgin Mobile, or do I have to buy exclusively from the online store when I want a new phone? If the phone would actually end up working, do I need a new sim card? And if so, how do I go about getting one for Virgin Mobile products?