Default [Q] Internet Access Problem

Hi Guys,

So I just got a Nexus 5 yesterday. I am with simple mobile. I put in the sim-card and set up the settings and everything was fine and worked great. I was able to access the internet all with no problems.

Now today I can't access the internet or any apps that use the internet I keep getting re-directed to a up sell t-mobile website. I tried googling it but all I can find is about a tethering block that t-mobile put in place. I don't use my phone for tethering and I have no idea to fix as the simple mobile support were useless, just the usual turn the phone on and off stuff.

Please Help!!