Hi TTIAP,
I'm sorry to hear that your omni box needs repairing. We can certainly get someone out to resolve this. From your picture, it's not clear if the box is high up or low down. Can you confirm which it is?
In terms of compensation, you would only get this is you have a total loss of service for over 48 hours. There would be no compensation payable for an omni box is disrepair.
In order to look in to this more, I'll need to confirm some details with you. I have sent you a private message regarding this. Just click on the little plum envelope at the top right-hand side of the page to access your inbox.
Thanks,