Furious! Useless Service!

My wifi router has been ****** in April, after phoning vodacom to blacklist the device i was advised that I could go in to a vodacom and do a swim swap and get a new ****le. I did exactly that, and the sales lady upgraded my wifi package to a 10gig one. Unfortunately the new router did not want to work at all, after very lengthy phone conversations and one hell of a struggle for almost a weak long, they FINALLY got it to work. Apparently the new device did not want to work because the sim is still blacklisted, so the consultant said he will have to reactivate the old line and the new line. Which did not make sense to me, because then I will have to pay for a line that is suppose to be blacklisted/******? I mentioned this to the consultant, who reassured me that this will NOT be the case, and that in the new month it will automatically reset to just the one line/device that must be activated (the new one). Needless to say this did not happen!! Now I am being charged for my old device that has been ****** and reported as such as well as the new device?? I phoned vodacom who just informed me that they will lodge a service request, so in SEVEN days they will be able to see if the can POSSIBLY assist me and reimburse me for the extra R288 that is being debited from my account??!! This is unacceptable! I want someone to solve this issue as in YESTERDAY! this was NOT my fault, it is clear that the staff is not equipped to resolve problems correctly or efficiently!?? Now I, they customer, must pay the price ****erally) and just accept it like that? I can go on with a list of problems regarding my contract and service from vodacom! I will definitely not be continuing to make use of their services!