Telus business call center harrassing calls

I have been receiving many harassing calls from your Telus Business center.    This is a obvious call center and I am tempted to take over your call center.  Much like I do when these scam call centers from Pakistan.   I take over their systems and shut them down.   (Terribly easy to do over cellular)

They insist that our services are due.  I am looking at the contract right now, and I am correct.  Our contract is to 2027, so if it is your call center, they are working on incorrect information.

We unsubscribe from all marketing emails and calls from Telus.   For obvious reasons.   Can we get someone to address this too please ?

Thanks