Acer — Low battery

Hi,

I m a very upset customer with the way I was treated by ur staff.
I bought a acer aspire laptop 5310 on 1st October 2007.(SN. LXAH20CO167341F83A1601).

I m facing issue with the battery as it drains out in 10 minutes.
ON 25TH SEPTEMBER 2008, I called you Customer service [protected]. I was told that in 5 working days a technician will be sent at my place and I was assured that as I m calling within the warranty period, the battery will be replace free of cost.
But unfortunately no one came to replace the battery. After that I called multiple times and no one helped.
I will not pay for the battery cost as i called within warranty period.

I was very happy with acer prior to this experience.
I had recommended 4 of my friends to buy acer.
Now if I dont get the battery replaced free of cost, i have made up my mind to lodge a complaint.
I have my cousin working with newspaper and she has suggested to share my experience and write an article abt my experience.

If i dont get help I will be forced to take a step.
Can you help me?