Worst Car Servicing/Reportining Back

I had the worst experience with Barloworld Ford Alberton, I had booked in my Ford Figo for a high fuel consumption check up with a lady by the name of Alisa (apologies for incorrect Spelling/pronunciation). She gave me a call around 2 to tell me that they still busy with the car and asked me whether I needed the car and I gave her a strong indication that I need the car later. Later on I called around 16:30-17:00 and she started being ***** telling me that the technician are busy with the car and still trying to figure out what the problem is and it doesn't look like the car would be completed today, I asked her if she could indicate whether what the problem might be she said the technicians has put the car on the diagnostics and they are picking up no problem but they still checking, with a lot of questioning she ended up saying that they willing to release the car tonight all of a sudden and book it later. My concern is did they really do anything on the car or not. I had to leave Sandton late at night with no car using Taxi to collect my car. its a bit unreasonable for her to lie to me had she been honest from the word go we could have made a plan.