HP (MIS) Service

I would like to share with you a terrible incident which happened to me at the HP Service centre at Kaloor. I have a HP laptop of which I forgot the BIOS password. I approached the above mentioned service centre on 5th of november, th ey demanded a sum of Rs 800 for the BIOS reset. I agreed to pay the same and enquired when i would get the laptop. They replied that I call them the next week. I called them after three days (9th november) and enquired the status. They told me that it was not done. I had to lie to them that I was leaving for bangalore and required the laptop urgently. When I went to collect the laptop, their behaviour was so rude. I request to the concerned that appropriate steps be taken against the service centre.