Sprint... really?

I just received a text from sprint a couple weeks ago:

XXXX: SprintFreeMsg: kick off fall w/ a chance to win an NBC swag gift bag valued at $100 from Sprint TV & NBC. Click here: http://gospv.com/nbc Reply End to Stop.

I am shocked that my cell phone provider sent me this unsolicited text message! So I reply 'End' and they sent me this this:

Thanks for being a loyal Sprint customer. You will no longer receive info about our Just Because perks.

I did not know I signed up for those 'perks' because to hell with them! So I signed into my sprint account to unsubscribe to any other 'Perks' that are lurching in my account and I found nothing resembling 'Perks'. So I went to my block text message page and there is an awesome disclaimer:

Occasionally Sprint will send account-related text messages. You will receive these messages regardless of the options you choose here. You will not be charged for these messages.


Now that is shady...