Ambrane India — Faulty Power bank pp 7000mAh

Address: 400064

Dear Sir,
I have placed online order to Infibeam one power bank pp70000 which was delivered by ambrane India by paying cash of Rs. 1030/- on 14/12/2015
After taking delivery and their instruction I charge the same power bank for 10 hours but, It was faulty and was not in working condition so every next day I have contacted Ambrane India and explained my problem. They guided me to to give power bank to their Mumbai service centre, so thrice I have submitted the power bank to them but, problem was not resolved by the. Once again I have contacted Delhi Office and they have arrange picked up the same on 19/02/2016 from Mumbai. Now almost one month have passed but still neither they have delivered my power bank nor they have given replacement. Every now and then they are giving excuses for the same.
So by this mail I the undersigned hereby requesting your good sake to look in to this matter and give me justice.
regards,
U V Vernekar