Honda Shine — Not serviced the defect

I have given my bike at DIDAR motors sales and service center, who is the authorized dealers for HONDA motor cycle,
The actual problem was the bolt or nut in the disc break was fell down from the bike, I am explained the problem clearly before giving the bike for servicing even though the defect is not solved

First they get the signature from me in the service receipt and they said the bike is serviced. But still the problem is not solved in the break, due to this problem in the bike I may fell down from the bike if I use that break and it make serious problem to the bike. I ram really getting very bad experience with that people from the beginning. Still I am facing the gear slippage, Switch off of the bike in the mid-way etc...


Thanks,
Radhakrishnan
chennai.