insurance

I got a phone for my daughter last year September for her birthday and when we were getting it, we made sure to tell the sales rep to include insurance on it and even ticked the box on the contract. She got ****** on the 07/02/15 and when I went to vodacom to go claim for the phone they told me that I wasn't on the system. When I asked how come, the manager let me know that its because the sales rep hadn't ticked the insurance box on the screen and said that Vodacom can't be held liable. How in anyway is it my fault that you hire daft people that can't even tick a box on a screen and how come managers aren't rechecking contracts to make sure the information has been entered correct! I'm very disappointed because its the second time it is happening and the first time we accepted human error but I can't be paying for a contract phone that my daughter isn't going to be using! If this issue isn't resolved I will have to resort to legal action. My daughter has been a loyal customer for +-10 years and after this she is even thinking of changing networks. Please resolve it asap.