Vodafone — vodafone mobile connect USB stick not working

respected sir
myself Ajay Mittal resident Haridwar, Uttrakhand have taken vodafone Mobile Connect USB stick from haridwar vodafone mobile store on 25/07/08.The USB port is not working from 10 days.We have made a many complaints since that day But have not got any service reply. As I count from my experience, after sale services of such a reputed company 'Vodafone' are highly unsatisfactory.I'Am earlier having three prepaid numbers of vodafone on my name [protected], [protected], [protected] but this time my experience with the company is really noxious. As being an old customer I'am greatly disheartened by this worst situation of such an highly reputed company. I want an immidiate action to be taken to resolve the problem if you are really concerned with the reputation and customer satisfaction for your product.
Name of customer-Ajay Mittal
Adress-53 a Govindpuri, Haridwar
Model-K2540
Sim no-[protected]