Webuycars Bad Service

I buyed a vehicle from Webuycars Nelspruit.

Driving it home the 'Oil level too high. Workshop!' indicator came on. Upon inspecting the dipstick it was about 40% overfilled.

I informed Chris the salesman @ Nelspruit Webuycars as well as Arno van Zyl and their reply was that the Service was done by an RMI approved workshop. Not trusting the reply and double checking the invoice for work done I also saw that the incorrect spec of oil was used as well as the overfilling of the engine oil.