Not willing to give the voucher they’ve promised to make up for the fact that I couldn’t use the service after paying for it

A call agent offered me a two month voucher because of the fact that they upgraded things over night and I wasn’t able to use Showmax after paying for it. I came here to say how disappointed I was after NOT receiving any feedback or voucher. They then contacted me via email but now only wants to give me one month! The bullsh is just piling up and getting worse from them. MORE EMPTY PROMISES, MORE SHI**Y SERVICE. I can not believe that an actual business can operate like this.