Mercedes Benz Sandton refusing to replace my worn out brake pads

I am disappointed with Mercedes Benz Sandton. I have been servicing my car with them for the past 2 years and have been happy with them until now. My car now will be going off the maintenance plan. I am few kilometres away from being out of the maintenance plan. Coincidentally my brake pads need to be replaced. They are making noise when i apply the brakes.

I took my car to Mercerdes Benz recently regarding this. When I arrived at the dealership, my service assistance did hear the sound and said this immediately when i got off the car, conceding that she heard the sound and that the brakes definitely need to be replaced.

I then left the car and to my surprise i was told later that the brakes do not need to be replaced as they are not completely worn off and that they app**** some paste or oil on them. This paste/oil has not helped as the brakes are still making the sound.

Mercedes Benz pride itself with safety of the vehicles, yet they do not want to replace my brakes now when they need to be replaced. I think it is their way of avoiding to replace these brakes as the car will be off the maintenance plan soon. On the other hand, I don't think I am wrong to want to replace them now before it is off the maintenance plan. Obviously the problem is occurring now while the car is still under the maintenance plan. If they were still in good conditions now, i wouldn't mind replacing them later because i know that going forward i will be responsible for the cost of the vehicle maintenance.

I am so disappointed. I will not be servicing my car with them in the future and I would really not recommend them to my friends, unless if they do the right thing now and replace my brake pads.