Metro Entertainment Sold My Cell Phone Number to Telemarketers!Internet

I bought (very overpriced, I found out too late) tickets to the Big Time Rush concert in Grand Rapids, MI.  The tickets came fine, hopefully the concert will go well, also.  But approximately a week after I received the tickets came the first telemarketer call.  I gave them my cell phone number (lesson number 2).  I missed 2 (866) area code calls the first day.  I decided to call the number back. A woman greeted me by my first name, thanked me for buying my tickets to this concert and proceeded to tell me I won a $100 gas card if I tried some "budget" thing for 14 days.  I was disgusted.  I told them to remove me from their list.  We'll see how it goes?