Edcon is useless on R8000 phone insurance cover

Edcon offers Insurance cover for a phone for up to R8000. I insured my Samsung Galaxy S5 about a year ago and it recently got ******. A few months later I submitted my insurance claim and it was approved. However, for the last 4 months I have been to almost all the Edcon stores around Johannesburg but none of them seems to have an S5. I understand that its an old model and may be phased so I started seeking for an S6 instead. Once again I went to all their stores and the most expensive phone they have in each store is around R5000. I feel that it is unfair to make someone pay for cover of up to 8000 but you dont even have phones around that value. If I knew this would be the case I would have taken the up to R5000 cover or even better, go with another insurer. I know that an S6 is around R10000. I am willing to top up. I just need Edcon to get their ish together because I am starting to feel like I'm being de*****ed. Its funny how some major retail stores have the S6 but only Edcon stores don't have. I have been patient. This is frustrating and is an unfair practice, especially when you have insurance premiums being deducted from your account every month yet they don't deliver