Getting rid of iPhone text spam?

OK, yesterday I started making money online using surveys. I thought about making a new e-mail so my main e-mail will not get spammed. BUT, what I didn't think of is putting a fake telephone number. Now I keep receiving text message spams. Really short telephone numbers keep texting me (i.e. 66333, 89777, etc). If I reply "STOP" to one of them, another number will text me.

What I thought of doing is blocking any text messages that are not in my contact list. How can I do that? If you can think of something else Please tell me.

If it helps, I have an iPhone 4S.

IPhone 4s stuck at lock screen 3G?

I bought a iPhone and the whole screen doesn't work. I tried resetting it and rebooting it and holding the two buttons but none of them do anything. And I live I Oregon does any one know of muck it would cost to fix it with out warranty but please give me ideas on what to do

Iphone 4s has gone silent

So i don't know if its something i did last night while drinking or not but my iphone has stopped making the clicking noise when i tap, it doesn't make any sound when i get an email, text or call either, i've gone onto settings and all of the sound settings are still on and the voume is up but there's just no sound… What do i do?

I lost my iphone 5, think it might have been stolen?

If the thief takes out the sim card and resets the phone will I still be able to track it through findmyiphone? My icloud details would be gone when resetted so I don't know if I'd be able to find it. If the sim card is taken out, between the time it took the person to take it out and reset the phone is it possible to get a location?

Easier way to download ringtones from online straight to my iPhone 4?

I recently got this iPhone and I want ringtones so I found some free ones online but every site keeps making me send them to my email then I have to save them on a file to a computer and then sync my phone all for one tone, is there a way I wouldn't have to go through all that? Any help will be great, thanks

Can i view my itunes bill online?

I stopped using iPhone in July this year, and have not accessed itunes since. I've just had 3 sets of £10 - £14 removed from my account for no reason - I have no active subscriptions on iTunes and just don't understand why they're taking money from me. The account they've taken it from isn't even my registered iTunes payment method - what to do!