bad service rip off (kwik fit)

I have had the utmost disgusting service at kwikfit town centre people trust me ur invoice with guarantee means nothing .. in 2017 march which they give u a 12 month guarantee I did my clutch 6 to 7 months later I then did my rear main seal from my car... then to top it off when I got my car back my gearbox wasnt tighten correctly ... 2 weeks ago I approach them to advise them my clutch sometimes slip due to the rear main seal they did it leaks oil on to my clutch which they also did.. they then advise me I need to pay for both and they dont guarantee on rubber components.. which I said okay ill pay for the rubber component but if clutch is damaged they need to reace that as its under guarantee they then tell me nope they wont because its of the seal that is why .. even though they did both jobs...PPL PLEASE DONT BE FOOLED BY THIS PPL.. THERE WAS 3 othercars with the same problem and similar problems which they gave the same story .... disgusted service ... riding on ppls back and we work hard for our monies just to rip us off.. both jobs costed me iver R4000 tabd and wana charger me that again in less than a year ....