Zero feedback, no response to emails. Scary

Does supersonic still exist? I have been a customer now for almost a full year and trying to make contact or any sort of help, I find horrific. I have asked now for a full month, i just want to know HOWMUCH it will cost to keep the almost year old router should i cancel my FLTE, the router is almost a year old, so i would expect it to be a bit less then a new one since ive been with you for 11 months+ now. Nobody can answer me, calls go on for ages with just they not sure, several requests have been logged and i have not heard a thing. Please just email me with the price on what i have to pay should i cancel and keep the router - im not requesting cancellation yet, but might do so in the very future. I have already paid for this month so i should which will make me now active for one full year with supersonic & MTN. Thank you