Accident repair on FZ1000 Fazer

I have booked my bike in for a accident repair, three times I was told the bike is ready for collection but all three times the respray job had been very badly done also did I show them some tears in the paint not to mention the dust under the paint. I got a very arrogant call from the Branch manager who apparently cannot understand what is wrong with the quality of the work. After a hell of a fight they send the spares back to be fixed, and it came back still no good after which I told them Ill take it just to get the bike home after three months but they need to take the badge that was incorrectly stuck on the tailpiece of and put it on the headlight fairing where it originally was when the bike arrived at them. Upon collecting the bike there was no fuel in it although the bike arrived at them with a full tank. Lastly after getting somewhat fuel from them I realized on my way home that the tank gauge is suddenly faulty, to my amaze the fuel gauge inside of the tank was installed incorrectly. I was under the impression that when you send your bike to agents you get the best service although I got the worst service ever and still need to sit with a poor paint job.