I realise that. He was supposed to change the sparkplugs, control arm bushes and see if anything needed to be done before the upcoming annual inspection. He did nothing I asked him to. He changed the oil even though the last change was clearly marked on the windshield-it was done less than a 1000 km before (he replaced the old oil change sticker with his own so he knew he was doing it too early!) He then charged me for things which are usually part of the oil change seperately: cleaning of air filter and greasing of suspension and steering parts (extra 150 Riyals)!