Ro Nf - Water Purifier, Eureka Forbes — AMC taken but no response on service

My complaint no. is[protected] for dated 03-09-09 and 81875698 for dated 10-09-09. We have paid Rs-3660 for annual maintainance contract starting 28 AUG 09 but till date there is no response from there side, when their persn should have visited by 29th Aug 09 itself for the service. Many times we have called in call centre for complaints and many times to Mr. Pawar (customer executive). (Tel No. are [protected] ,[protected] but no response.We have experienced this company as a very bad service provider.We need help or we need our money back.