I NEED TO UN-SUSPEND MY SIM! NO ONE CAN ASSIST!?

My phone was ****** and I subsequently called to have my phone blacklisted and sim card was suspended at the agents suggestion because I'm on contract. I can now however not un-suspend it. I've spoken to multiple call center agents as well as gone in store. The in store team couldn't help and told me to speak to an agent. Which they tried on my behalf and couldn't get that right either. The online agents and call center agents tell me to go to the store. I'm paying for a service I do not receive and it's been over 2 weeks of this hell now. This affects my job!!!