Henmak and Hoselect batteries

I was supplied 8x 200 Ah Hoselect batteries which were purchased from Henmak in June last year. these were installed on my inverter and everything seemed to be working well until load shedding started again in September - only 3 months later!! Already after only 3 months the batteries were not holding charge. I tried for a month to get the installer to come and test the system which he promised to do and still has not done, so I took the batteries to an independent company to test them. Not 1 of the 8 batteries was still in any reasonable condition. I have now contacted Henmak to honour a warranty and replace these or refund me which they are not willing to do. BE WARNED not to have any dealings with this company