Cell C Fiber extremely slow

Cell C Fiber has been extremely slow from 27th of February in the evening. I did call Cell C Fiber support yesterday 28/2/2018 and the response from the support is that Cell C and Vumatel are having issues and they are trying to fix and upgrade the systems and there is no expected time for full recovery. I would like to know when this issue will be fixed as the whole concept of having the Fiber is to have 24hour uptime with excellent speeds as promised.