Guarantee not worth the paper it is written on

<p>I bought a battery from battery centre on the 25 July 2015 and was told the battery has a two year warrenty which I was happy about .About two weeks ago I tried to start my car and it wouldn't start I call the mechanic only to be told the problem is the battery I then took it to battery centre where it was check and they told me it was indeed faulty but they were unable to change it at that time and I should wait at least 3 to 4 weeks for the battery to be replace by national battery which is totally unacceptable as I need my car to go to work and back </p>