Vodacom insurance

I took out a phone contract at vodacom in December 2017 and asked and signed for incurance. The day that I took out my contract the system was down and the sales person that helped us said he will activate the incurance when the system is up which he did not do! My phone was ****** on the 23rd of May 2018. Went to vodacom on the 24th of May 2018 to put is a claim and the sales person said that I should call cellsure the next day to confirm that the claim was approved so that is what I did and they said that the claim was not approved as there was no active insurance on the phone. I called vodacom and they said they will take care of the matter. Fast foward to the 11th of June, The sales person contacted me an said that cellsure wont cover the phone as there was no insurance paid on the phone for an excess of 3 months as I presumed that the incurance was included in the amount that was debited form my account monthly.

I have been trying to be nice and it hasn't be helping me as I have been without a phone for about 4 to 5 weeks. What is my recourse.