Malicious sites?

Just bought a new Android tablet and got a voucher for Norton mobile with it. Registered product today and then also registered my Android phone.

Within seconds of reg the phone my phone browser came up with this site =

HTTPS://WWW.com-06:info with a pop-up over it asking me to press OK to get a reward. Does not respond to back button. Further down page informs you in the fine print of the $5 charge per message.

Eventually back button persistence takes you back to WAP.fumblo.com a site I have neither visited nor heard of.

This as stated was within seconds of registering with Norton.

Why is it so. Not impressed so far!