Horrible customer service

After booking an appointment for jetski service I drove to Lutz Marine which is in Vanderbijl Park all the way from Johannesburg - just to be told that they don't do service on Jetskiis, so when I asked manager why did they book my jetski for service the - he just walked away without even giving me any response. But, I was pre-warned not to come near them due to their appalling customer services - and I did not listen - so I only have myself to blame.