ABSA Insure rejects claims

I submitted a claim with Absa Insure for my laptop. After 4 weeks of me being sent from pillar to post, I was informed that my claim has been rejected because I don't have proof of purchase. When I took out cover they told me that I just need to have the box as proof that I owned the laptop. Now at claims stage they want proof of purchase and I went to Vodacom where I had taken out the laptop on contract 6 years ago, they advised that they do not have it on their records anymore. This is pathetic!!!