Very Unhappy with Hyundai customer service and warranty

We purchased a Hyundai I20 fluid 1.4lt on 16/03/2018. After 3 days we became aware of a rattling sound on the cars front side. We took it to Hyundai Witbank Eastvaal Motor City on 23/03/2018 when we were told that the stabilizer bar needs to be replaced. We were told that the spares would be ordered on Monday 26/03/2018 and would arrive by no later than Wednesday 28/03/2018 then the car would be ready by 29/03/2018 before the long easter weekend. When my husband called for confirmation today, Wednesday 28/03/2018, he was told that they had not even ordered the spares yet as they are still awaiting for a signature from a main manager as authorization that the spares can be ordered for a warranty. Which means that the vehicle would not be completed by tomorrow as initially was reported.