No customer service etiquette

I took out a contract with Vodacom in January this year, with the insurance. So today I went to the store to claim from the insurance, I am the told of clauses that are not on the contract that I received from the store when I took out the insurance, I then asked to see the store manager who then started shouting at me like I was some 5 year bold child.

On all the documents that I have with me, they have the Vodacom Logo, but today to my surprise there is a third party that I need to contact which is Cell secure that is not stipulated in any of the documents that I have from vodacom.