They won't cancel my line installation

I have asked you 3 times to cancel my line installation and line package and 3 times you said you did. Now I get an sms saying you sent a technition to install the line. Don't you dare debid anything from my account for this. I cancelled it and you didn't listen to me the first 3 times I told you yo not come. I did not sign any contracts. You wasted your technition's time by making him drive out to my place. Please cancel my line package and installation!!! Learn to listen to your clients when they say something. This is unprofessional.