Security system woes

So. I've had this Telus security system 2 weeks. It works alright I guess, not happy I had to install it myself but here we are. I was shorted 5 door sensors on my equipment package. 2 weeks ago Telus assured me they would send them out and still don't have them. Terrible service with Telus. Tired of calling and waiting and getting transferred etc etc. I want my sensors. Not a fan of this company.