Unable to use unlimited online backup

Hi,

So I have the Cox Ultimate High Speed Internet package that comes with "unlimited" online backup/storage. So this month I decided to take advantage of this provided feature and subsequently received an email saying I have gone over my data usage for the month. After talking to support I was informed that by utilizing this feature, which is included with my package, any data I transfer to the online backup counts against my data usage for the month.

So I must ask the question, what is the use of having unlimited online storage if I'm limited to how much data I can upload/download to this storage. This is a catch 22 situation which I feel is unfair. Cox can offer and send me emails about this great new feature I have with my package but then turn around and penalize me for using it.

I would like to understand how Cox can provide a service but not allow us to use it.

Thanks!