OpenView Faulty - Consumer Complaint for PEP STORES

Westgate Mall Pep store manager refuses to refund my open view which I bought on 8 August 2019. Thursday while I was watching tv the OpenView just went dead. Friday, when I took it back to the store the manager's response, as I should buy a new one even though I produced my slip. If I had to know that Westgate Mall does not have a guarantee or warranty I would never have bought it there. The funniest part is that Pepstore in Watergate and Pep store in Promenade replaces the faulty OpenView if there is proof of purchase so why couldn't mine be replaced. this all transpired on the 31st JULY 2020