Unacceptable wifi access

Hi we have been trying to no avail to sort out the interrupted internet service to your call centre for some time. We have even been instore only ro be told by the telkom employee that everyone is facing tje same issue. We have an.uncapped package with a Huawei LTE router b315 that we had since may 2016.. the last months the router suddenly changed reception colour to dark blue. We rarely use 50GB a month sometimes even less. We do not stream or play online games. It is mostly used for work and social media after work. Why do we pay for what? We have resetted tje router aswell as asked by the call centre agent. The speeds also differ from about 3-7mb upload and beyween 2-5mb download whilst the moon and stars are promised. Sometimes the speed is even slower. I am in line to upgrade now but strongly looking at other internet providers. #I.NEED.TO.WORK.FROM.HOME ********** 205