Vox supplies incompatible devices and then ignores me for months!!

I have fibre to the home with Vox and Frogfoot. I was first sent a UPS that I’m paying on a monthly basis, then Frogfoot installed the Fibre box and modem. It was immediately apparent that the UPS device could power the modem but did not have an adaptor that is compatible with the Calix 812 Box that was installed by Frogfoot a few weeks after I received the UPS. I have reported this to Vox on multiple occasions. They need to either give me a compatible UPS or have the fibre box changed. Today I have called eight times from my mobile phone - super expensive! And have been disconnected seven times during the cal.. I am now holding on call number it has been almost 10 minutes and I still haven’t had an opportunity to speak to a human.

I am really disappointed in a company that I’ve always thought highly of. Their sales service was brilliant, Frogfoot’s installation was excellent. But when I try to get after-sales help for incompatible devices that they supp**** and I get ignored.