Cell c Lte home rooter

Good day I have send my home rooter in for repairs on the 19th February 2019 I did not get any feedback regarding the rooter than I've called the repairs and was advised that I need to get a new rooter and was transferred to the sales department the new rooter with a new Sim card was going to delivered to me 1st week went by so I called again than they said that they don't have any apdate from repairs I've been back and forward every day no can help me I'm paying every month my installment on something I don't have this is the 2nd Month that no one can help me with this matter please help me I'm really tired of not knowing what to do.