Vodacom Insurance

I have been a customer of vodacom for 20 years with several contracts. I have insurance on my contracts and upgraded my contract last year to a data + tv package. I did the upgrade online. I have now requested a repair on the tv and because the statement and invoice e shows that there is insurance on the mentioned contract. When contacting them they informed that me that the insurance is on the previous contract and not on the current. So therefore the tv is not covered on the insurance. They also informed me that i had to inform them of the contract change, my argument is that as a department they should communicate with the different sections and also contact the client as soon as contract changes to confirm insurance.