Bad Service and lack of communication

I checked my car in at the Cargo Motors in Bedford view for the passenger seat sensor to be replaced as well as to replace my front tyres. Upon collection of my vehicle, I found that the car had been scratched and that the seat was not assembled/attached correctly (the bottom part of the seat was loose). They offered to get the scratch fixed and fit the seat. I agreed. They gave me a loan car and they sent the car to get painted. Upon the receipt of my car, I found new scratches and that my door rubber had been eaten off my the buffer at the panel beaters. They then asked me to contact their panel beater to sort it out. I complained to the branch manager Megan, who promised my issue would be sorted out. They contacted me and said the rubber had been ordered. I have subsequently found out that my aftermarket mini sub woofer was damaged when they fixed the seat. Two weeks later, I'm still waiting for the rubber and I don't my calls returned when I leave messages.