Poor Customer Service

I took my vehicle early this year for repairs at Klipriver Auto Spares. After few months they have removed my engine from the car so that they could send the necessary parts to the engineers. They have received everything back & the car must be assembled. I last saw my car on the 12 April 2022 with no engine. Today I went to check on my car after management have promised me that I will receive my car last week Friday. When arriving there today I've noticed that my car is still standing on the lift where I last saw it with no engine. I've paid my car since March 2022 but still no progress. Everytime I contact management, they keep on making empty promises. I wasn't told what will be the full total of my vehicle's repairs. They just keep on taking money but no repairs have been done. Please assist me regarding this issue because I'm in need of my car & I need it 100% fixed. The workshop manager fixes his family's vehicles on the same day when they take it for repairs. Klipriver Auto Spares make a 100%profit on all vehicle repairs. Their service is pathetic & it's unacceptable because we are paying customers. I will appreciate it if my car can be repaired asap with no complications.