Vodacom billing for router without concent

on 19 March we phoned Vodacom regarding a charge for a router on our account - this was suppose to be an upgrade to our current one - but Vodacom charged for 2 router accounts even though we had not received a simcard for the second router account. - ref 1- ********** ********** - Vodacom had to phone us back within 10 days regarding this. they did phone my husband back saying that they will pick up the second router and give us a refund . Router was picked up. it is June - Vodacom is still billing and deducting for something we did not sign up for and do not have in our possession . I want full cash refund from Vodacom.

I tried to call another investigation today - spoke to Nokuthula at 8:35 on 10/06/2019 - she insist that she cannot assist me and that my husband need to phone. why do we need to follow up on something that is suppose to be sorted in March already?