Pharmacy Direct, Irrate client

I am so dissappointed with the service I am getting from your company. It states 5 to 7 working days to process a script. I submitted my script on the 29th January 2020, it is now the 11 February 2020 still waiting. How do one get in touch with someone higher up. Some of the agents end the calls when you start stating your frustration. I get the impression that the call centre agents does not know how to assist you. These companies as long as they get paid nothing else matters.