I subscribed to Verizon about 4 years ago and received a Westell 6100 modem?

I was wondering if Verizon is supposed to update my modem. Something's fishy because my friend just recently subscribed to the same service from Verizon(DSL, not FIOS). However, why did my friend receive a modem/wireless router while I only received a modem? I asked them to send me the modem/router(so I can access the internet with multiple computers via wireless connection), but they keep telling me I have to pay because they already gave me a modem in the first place. That is bullSHlT because, then, why didn't they send me a modem that is simultaneously a wireless router by default? My friend told me that he didn't pay any additional charge for the router. It was his default. Why in the hell was my default only a modem? We pay the same amount per month, hence the fact that we pay for the same service.