It all depends where you live. Companies started doing this when more and more people have been watching movies, shows and listening to music on the net. That stuff takes up a lot of bandwidth.
Just give your company a call and ask. If you need a reason say you are doing a lot of business online and you do not need any hiccups.
I am thankful I do not have this.
This might seem like a very obvious question but why not upgrade? How much could it possibly cost?? Always remember takes money to make money.