No service delivery and WORSE customer service!!

I have experienced a terribly ********** customer service from Pulse Injector Services in Roodepoort. Their utter disrespect and constant excuses for a customer is appalling. In July 2020, I took my Mercedes C220 diesel Injectors for repairs and I received them back after 2 days and they were not working. Had to take them back, mind you I’ve already paid for their service. To cut a long story short, I’ve been jumping through the hoops of fire to get the injectors back but till this day I haven’t received them and their communication is terrible.