Revov Batteries

I bought 2 Revov batteries with the intention of installing them later. Later proved to be more than a year later. Nothing on the box or included instructions preclude doing this. When the time came to install the batteries, they would not take charge. One of Revovs online technicians advised me to take the batteries into one of their service centers. Cape Town being the closest some 400km away, which I did. More than 2 months passed and I contacted Revov and advised the technician that had taken in my batteries them that I needed to collect them. This was on a Friday. On the following Monday, the technician contacted me to advise that some of the cells would not hold charge and would not be repaired under warranty, and to collect my batteries. I assume this is the first time they looked at my discharged batteries in the 2 months they had them. I understand that Revov has invoked their online warranty ( not included with the batteries), and have failed to reply to emails requesting clarity on which clause or closes apply to my voided warranty.