NORTHWEST PROPSHAFT THE BAD SERVICE PROVIDER

I had a problem with gearbox of my car, so I took it to NORTH WEST PROPSHAFT AT BRITS ***, ***, on Wednesday 11-08-2021. And I was told that the labour was R1700. Today on 13-08-2021 the owner contacted me for car collection, but when I asked him about the problem he passed the phone to his mechanic who told me that the slave cylinder was the problem and he cleaned it and flushed the oil out of the brake systems, and only to pay extra R300 but the owner told me to pay extra R1980. On my arrival we had a an argument about the payments, and I felt mistreated, please let the public aware of this kind of business,