Wrong insurance cover

My name is Mmafusi Mo***eng and recently got an upgrade to an S10e, I signed up for insurance for 239pm instore, however to my surprise I'm invoice states that im paying 45pm, I called to get this sorted out and the insurance consultant told me there is nothing she can do to rectify this but will escalate it to the administrative department and they will fix this. It's been over 24hrs and no one has come back to me. I was promised a reference number but I didn't get it. Should anything happen to my phone in the interim it's going to be huge fight between vodacom and myself because they will claim I'm under insured. Now I want Vodacom to be aware that I have made means to understand what is going before trouble comes. Their insurance company is really not doing me justice and I need this ratified and sorted out ASAP.