Bad service and communication

Congratulations on the worst service and I am not even a client yet, or will I be. I got a call from a call center stating to be selling for Liquid and the Trucaller alert said Rude sales. I was curious. True to the warning , it was the rudest sales call I have ever had. I called the support center that is none existent and had to settle on the 3rd try for sales. I requested to speak to a manager and the agent said she would put me through, but to no avail. They cut me off. I need to be removed from a call list that I did not ask to be on and they have no channel to do so. 3 calls last night and 1 already this morning. what a senseless way tp do business.