So I made the mistake of buying a lotto via SMS, now I keep getting Lotto SMS to buy and what not. How can I stop it!! (other than blowing up their building of course)

Please close this post. I just called them and I was shocked that they actually answered and promised to never get any SMS again.
You will get sms for a limited time , if you ignore them and not buy another ticket you wont receive an sms anymore
if you have an android you can just press the sms and choose the block option .. i use this after mistakenly giving my number to a cloth shop .. now i have over 20 ppl blocked .. those bastards
it's sometimes good to know that a clothes shop has 50% off...