Dissapointed customer

On the 1st of November I purchased a router from vodacom online, it was delivered on the 14th but only RICA ed on the 15th. I have been trying to activate the router and it was cont connecting to the network. I checked with RAM the courier company that delivered the router and they confirmed that they did everything on their side. Called vodacom and they confirmed that the Sim is not activated and I must do a SIM swap I then opted to cancel the but they are now dropping my calls each time I request this. Am i really expected to pay for a device that does not work for the next 24 months? To think that I have been loyal to vodacom for the past 20 years.