Network Locked SIM Card Inserted! PLEASE HELP

[Naveed09]

I have Samsung S7 and already got registered in PTA. but I am not able to use any Pakistani SIM. It says network locked sim card inserted. I have already complaint in PTA but it says they didn't block it.

PLEASE HELP ME HOW TO RESOLVE THIS ISSUE?

[user9992112]

Visit nearest service center for more info

[Naveed09]

Please share the services center address in Karachi