Hero Motocorp — Bike service delay

Address:

Bangalore, Karnataka, 560092

I gave my cbz xtreme bike for service at bimal showroom bytarayanapura branch on 1st november and the person told it will take 4-5days due to short of staff, but it's been 13daays no one call me and whenever i call the person he will tell he will call in one hour i had not received a single call from them. When i visited the showroom on sunday the person who took my bike was on leave and they told monday we will get it done but no use of it.