How am i supposed to use internet if you not activating the sim

Called in to cancel contract which was due to end, but i was offered a good data deal instead. I told the consultant over the phone about the sim card that i haven't used in 6 months or more so i would need to do a simswap, and there was no issues. Got router delivered on the 21 Jan with papers stipulating that sim card would be aciltive in 24 hours, but its still NOT active. I have called your call center plenty of times i am not getting help. The last consultant i spoke to told me to go to a store, but i made it clear the minute i agreed to take the router im not going to no shop and pay R150 fo a sim swap. Now Cell c, you either activate this sim card u gladly gave me or come and take your router and cancel the damn contract. And I will not b paying for no courier fees coz its your fault. Im already regretting upgrade, dont know why i did because im very aware of the bad service you give