CMH Ballito BMW 540i

I purchased a vehicle from the dealership in January this year and took delivery on the 12 January,we had made it some request on the some faults to be repaired on the vehicle before taking delivery, which we were assured was done,however after taking the vehicle home we discovered that the wheel that was to be repaired was moved to the drivers side of the vehicle,which was on the front passenger side when we inspected the vehicle when purchasing,I called the salesman and complained.He told me that it was due rotation of the tyres when balancing that this was done and he also did not notice this,I accepted this exaplanation and made arrangements for the vehicle to go the dealership to have the wheel repaired around the 8 or 9th February. Upon receiving the vehicle back from the dealership we noticed that the repair done but could see the rim was the wheel not 100% and again I called and was told this is the best they can the wheel and I should not have any issues. This Sunday (9 March) I had pressure filled in the wheel in question at a service station and I saw the pressure dropping while filling in pressure and asked the attendant to put foamy water around the tyre to check where the leak is from and found it’s around the bead of the tyre,which means the tyre may not be fitted around the rim and losing pressure. I spoke to the dealer principal Mathew Buck and after several emails sent me an email that he not responsible and will do anything about it. I don’t think this is fair as the repairs was done by the dealership.