Dstv is trying to rob me by not fixing the mistake done by them

My 3rd complain on the same case, 2 weeks later after 1000 promises from dstv that they'll fix the error. I'm still stuck with 6 router whilst I orderd 1 router. There was a promotion for compact + router =R499 pricelock I took the deal. On the 3rd of this month they delivered 6 routers instead of 1, I've been calling them they kept telling me they will send courier to fetch extra routers and they'll fix my bill. Guess what its the 21 June routers are still with me , they haven't fix my bill and my billing date is the 25th. Basically multichoice are expecting me to pay for their incompetence which off course I won't do. I've made 1000 calls send emails. They keep taking me from pillar to post instead of just fixing my bill and cone collect their extra routers. Who in their right mind would order 6 routers fir 1 household? Worse they called me a day before delivery to confirm how many routers did I order I told them 1.