Faulty battery and no reply from Zest Mobile

I ordered a Zest T1 on Tuesday 29/12/2015 and received it on Thursday 31/12/2015. I was very impressed that the order had come before the New Year and that Zest had delivered it to me so shortly after I placed the order online. <br> Problem is the battery is very faulty. The battery lasts for about an hour and a half (maximum) without me doing anything on it. I lose about 1% battery life per minute on average. In the past 6 days that I have had the phone, it has been on charge more than I have actually used it. I have been in a situation where I urgently needed to make a phone call and couldn't because the battery has died. I have set the brightness level on its lowest (which causes me not seeing much on the screen) and closed all apps, programs, etc on the phone accordingly.<br> I have really not had ANY pleasure using the phone as it has to be on charge most of the time.<br> I am not satisfied with this phone at all.<br> I would like ANY form of response from Zest Mobile as I have e-mailed them regarding my issue and have not had ANY response whatsoever - not even a courtesy e-mail or call. <br> This was my first experience with Zest Mobile, I am not happy continuing the relationship