false advertising

I was sold a LTE modem by Mobinetwork. First of all the product was delivered without a password or username. Apparently a email was meant to be sent by Telkom. After phoning and being redirected for 2 hours we were connected @4megs after I was told I would have a speed of 15 megs per sec. This is false advertising just like your adsl lines. If this is not sorted I will have no option but to send the product back. I am deeply disappointed. My cell phone is faster. I also want to add that this was done at the expense of myself as I was on a cell phone. We eventually got cut off and no one bothered phone me back. I am seriously shocked at the bad service ethic here.