Cost Inflation on Amarok

Worldwatch Trading 187 (Pty) Ltd t/a Reno Service Centre,(***), located in Bloemfontein renders really poor services, and also inflates their charges and rates, as listed below. I would like to express my disappointment in their service, where I had been double charged for the same service, namely the Reconditioning of Injectors and the Cleaning of Injectors. I would like to get Your assistance in retrieving a refund. This above is in relation to my 2014 Volkswagen Amarok, which I had entrusted the above- mentioned service provider to assist with its repairs.

Your assistance will be highly appreciated