Renault SA poor service

I ordered a clutch pedal at Renault Alberton on the 3rd Jan 2019 and was told there is a 21 day waiting period. End of 21 days I called and was told I will be called back regarding my order and it never happened. I kept calling with no help until I went personally to see the manager at the end of February. He told me I will definitely get the part on the 14th of March 2019. It's 15:30pm and I've not received a courtesy call explaining when to pick up my part. I called and I'm still told they will call me back. It's been more than an hour and they have not called me. This is disgusting customer service. I expected so much better from Renault staff including the manager but it seems they have not received proper training to handle customers. I'm very disgruntled and annoyed by their 3rd world service!