Unsatisfactory Afrihost service

I have been an Afrihost subscriber for a few years now and they usually provide 5 star service, especially when I've had a problem. I ordered a new fibre line and install at the house I moved into in September last year and received a new router. After chatting to an agent on Whatsapp about unstable connection, we fpund that it was my new router that was the cause of the problem. It's not even 7 months old. Upon discussing a replacement with the agent, i was told that they couldnt replace it as it was passed the 6 month mark. Really? it's hardly 7 months old and now you're telling me you arent willing to help me? I do not understand how it's possible that Afrihost isnt willing to help me where the router is just older than 6 months. I then asked the agent if they could offer me a discount on a new one but nothing! I am extremely dissatisfied with this outcome and I feel it's fair I am at least provided with a new router.

Please can someone help and look into this ?