How to unblock sim card when is permanently blocked

When you want to unblock sim card when is permanently blocked you have to consider reaching out to your service provider.

Your service provider will have to run a check on your line to determine if you aren’t owing them.
If there are no outstanding and unpaid bills on your account they will unblock your SIM card.

You can Call them and ask why it’s blocked or go online to your account page on their website.
If you aren’t ready for this process or they refuse, throw the SIM out and buy a pay-as-you-go SIM card but the risk is the phone is still locked into the original SIM.