Shocking product, worse advice and empty promise.

I had rust on my car, went into Midas Montague Gardens for advice and bought the product they advised. After using it within days the rust appeared to return, I went back to them and the salesman told me that it is normal, and I should re-apply. I did and when it appeared that the rust returned went to an authorised spray painter who charged R3000. The product was worthless- and the salesman not truthful. Before posting here I contacted Midas who said they would get back to me! THEY DIDN'T