Poor Service

I'm using a Huawei 3G Mobile Wireless modem. I bought this unit from [URL Removed] on 01 July 2015( Last year). The battery is fault now. I'm trying since yesterday to buy a replacement battery for this unit but with no success. I tried several services centres but with no luck, everyone is giving me a number to try, but with no success. I just think this is very poor after service from HUAWEI. I've tried several numbers in Cape Town, Johannesburg *** , Mtn , Vodacom , Autopage, wihout any luck. I'm sitting in the Western Cape with zero to none afterservice.