Charged for work not done!!

<p>After booking my vehicle for a service at Bosch Randburg, they phoned back with extra stuff that needed to be done. All in all my service with extras costed me R30,000!!!!! I didnt receiv all my old parts back, and had to take back my vehicle, because of a service light that keeps comming on. They said that it is a gearbox sensor and couldnt help me. They reffered me to a private guy, who wanted to charge me R8500. I the decided to take my vehicle to the agent directly, and they sorted my problem for R1500!!!, bute even more than that, they advised me that Bosch didnt do the work that they have charged me fore. This is unacceptable, and I intend to take the matter further. I want my vehicle to be fixed for I was charged for, with another Bosch dealer, as I refuse to deal with Bosch Randburg ever again. The ulternative is t refund me for work that is not done, so that I can do it propperly at the agent.</p>