Jawed Habib Hair And Beauty Salon — damaged my hair after smoothening

Dear sir,
I visited jawed habib hair and beauty salon, iit kharagpur branch two weeks back for smoothening my hair that cost me rs 6500. For the next three days my hair was fine but once i washed it using shampoo suggested by the salon, my hair has become extremely dull frizzy, my hair tips have become curled in a odd way that shows that the rebonding was not done propeery, i am having too much of hair fall and the smoothening is not there any more. My hair got damaged and i am really clueless what to do to. Inpite of spending rs 6500 and buying the expensive shampoo conditioner suggested by the salon, what i got is totally damaged frizzy hair.
I would want my money back or cure my hair.