BAD SERVICE FROM BARONS BELLVILLE

I am HIGHLY disgusted by the service I received from Barons Bellville today 18/05/2021. My 2013 vw polo went in for 180k major service and the Service Advisor Frank Lombard assisted me. Moments after my vehicle was booked in I received a call from Frank Lombard telling me that one of the technician broke a rubber seal on one of the coil-packs in an attempt of removing the spark plugs, Frank then told me that unfortunately my service plan does not cover that and I need to pay for the replacement part. I then asked of him why should I be held liable for a broken part and when I drop off my vehicle there was nothing wrong with it, I asked Frank if I could speak to the person in charge and he said his manager will give me a call. His manager then called me and told me I need to pay for the part as it is part of wear-and-tear, I again explained to him that the part was broken by one of their technicians so I don't see why I have to pay R1600 for replacement and he said he can give me a discount with an amount payable of R1400 and if they don't replace the part my vehicle will jerk. Frank called me after the vehicle was done serviced and it is ready for collection where I then have to pay the discounted amount of R1400 otherwise my vehicle won't be released, I then asked if I can see the Service Manager Craig Coetzee, Sales or Branch Manager or anyone who is in charge and I was told they are all in a meeting but I have to pay for the part before I leave. I immediately contacted their Head-Office and conveyed my query, the lady at the office who assisted me told me unfortunately there is nothing she can do but I will just have to pay the R1400 and she will send that branch a mail to escalate the matter. I am not the first person this has happened to as I know people that experienced the same service from Barons Bellville, so please people do not go there for any services. I don't know if it is a money making thing but their service is beyond disgusting and I do not recommend them to anyone.