Vox refuses response, ignores cancellation, no internet either

I've been with Vox 3 months now, 1 month without Wifi. They claim that the LAN is back on the old service provider system and the old provider says no, I'm not. I've canceled the service 13 days ago asking for my money back. No acknowledgment of the email, problem-solving, nothing, NADA What? Do you want to take another month's fees or what?