Got our 3rd re-furbished wifi router in 4mnths!!!

We've been having problems with our wifi router. Paarl Mall branch sens it to Tygervalley for repairs & we are without wifi for 2weeks each time. Afetr we have complained to various staff, as you speak to someone different every time, we asked that they motivate a new replacement. They all are unfriendly, unhelpful and some times even rude, telling us you can't or won't do it for us. We have the router for a week or two & it start switching off & on AGAIN! What are we to do?! As there is no willingness to help or even be friendly or curtious at this branch! We made a internet complaint to Tygervalley, my husband asked if she, Coleen, can help by replacing it, she said no & told him ok she will no just remove our complaint since she can't solve it - what kind of response is that?!?<br> This is our finaltry & cry for help, if we receive none, we will go ahead & move our 3contracts to CellC, since we got adviced to do that. Waiting for your response, Katie