Hi, so I tried to activate my phone online with credit card, didn't work but works everywhere else. My friend went to buy vouchers for me and now i activated it, no problems at all it seemed. Except when I put the SIM card into my phone, first it said "No Service" then after a few seconds "Invalid SIM". Went on here to look for similar questions, found the answer "reboot" which I did. Now it ONLY says "No Service". My phone is an Iphone 4 and not locked, they said it should be fine in the store and I've used different SIMs before. Also I tried to call CS and they ask 5 dollars to even speak to me, ridiculous.
Any solutions? Thanks