Furious and concerned customer

I've bought 2 devices on your App on the Black Friday week and received 2 Sim Cards for the devices bought. Two weeks ago my son tried to use the first Sim received in his phone with his vodacom Sim, the phone went off and afyer recharging he tried switching the phone on. The phone kept on saying wrong pin used. Eventually the phone was blocked. Today the same thing happened to me with the 2nd Sim received from FNB connect. I didn't receive any calls today, only now when I've tried to call my mother, she said she's trying to call me back but the calls are not coming through. I then decided to restart my phone, only to be told "wrong pin." What a coincidence? I can't even log into my phone. This is very sad and suspicious at the same time. I don't know what can be done from your side, but please make sure my money is protected. As of now, I have no idea how to fix this problem. If this is what your free data causes, then I would rather not want it. What an inconvenience this is. I'm not sure how you're even going to get hold of me, since I don't have a phone working. Please contact me on my husband's number if you want to get hold of me.