I'm about to become a customer as I await my Huawei 5072 device to arrive! I do have a question about minimum bill. Since this is, currently, my only device on my account...if I have a month where I don't use the device (like I'm on vacation all month!) would my bill simply be the $6 + taxes, fees, etc.? Even if my 'base plan" might be for the 500Mb of data?