Reebok India - Either Exchange the bat or refund complete amount paid for the bat

To CEO of Reebok India,
This is to inform you that I have bought a Reebok bat of Rs5499(Bill number-7809) from the shop namely Eliza Enterprises Pvt. Ltd D-34, Central Market, Lajpat nagar-2, New Delhi-24 on 15/1/12 but within 2 days the bat got full of cracks and I handed over the fully cracked bat to them and they agreed & accepted that the bat will be exchanged after company's inspection, but after a week when I personally went to the shop they said that your bat can't be replaced. After repeatedly saying that I need a replaced bat they refused. Now, I hereby request you to kindly take speedy action to refund the complete amount paid for the bat I bought from them.
Reply soon
Thanking you.
Yours Sincerely
Simmi Arora
9953747511