Unattended claim

I can't believe on day 8, I'm still struggling to get my leaking guiser replaced. I registered a claim to replace my guiser on the 29th July 2019 and it's the 06th August 2019 and still I'm sitting with a leaking guiser. The plumber was sent to assess and he said the guiser is still under warranty so they can't replace it. I was told the manufacturer will be contacted and they(manufacturer) will be in touch with me in 48 hours to replace the guiser. That was 7 days ago. I feel that absa insurance should replace my guiser and deal with the manufacturer themselves, I don't have to deal with the manufacturer because I pay my premiums with absa not the manufacturer.