Vodacom apparently did not receive their device after they collected it from my house

<p>Vodacom delivered a tablet to my house in Sep 2016 after saying it was a complimentary gift. 5 months later i realised that they were charging me R199 for data i never used for the 5 months, disputed this with them and even escaled it to the NCC. Vodacom collected the device from my house in January 2017 and was refunded my R199x5months money that they were debiting my account. in March 2017 they charged me R3944 for "early cancellation fee" of this contract. i have been phoning and going to the store since March with noone to help. finally last week when i phoned they said that they debited the money because their record shows that the device was not received on their side after it was collected from the same address that they delivered it to. so apparently there is nothing that they can do because their own courier company that they sent to collect the device somehow vanished and the device never reached them. How is this really my problem??? How is it that this company is making me pay a good R4000 for this??? </p>