Utter poor service from MTN!

We have not had any signal from our tower over the course of the weekend. This recurring pattern of the tower going down for days is effecting our income as we have a work-from-home situation that pays by the hour. The next tower over does not have the capacity to carry two suberbs. We have repeatedly logged tower problems through our ISP and they have done what they could. But MTN disappoints. Repeatedly. Also told us they refuse to replace tower batteries or accomodate us at all!