Charge for a handset that i do not use

Good Day,

I am querying the fact that i am being charged for a handset from Amobia. I am being charged R165 for something that i am not making use of. I was told on handover that it needs to be given to all occupants and need to sign for it. I queried this with Amari, response is Owners are paying for the availability of the infrastructure (irrespective of making use of it or not) and as per the below clause in yellow, it is mandatory and therefore cannot be removed from a levy statement. How do you pay for something when you not told prior of this, if i had known i would not have signed for something that is just sitting in its box collecting dust. This is daylight robbery to be charged for something you do not use.