STOP MESSAGING ME!

Since yesterday morning, 12 October, I have received 5 sms's from hunters about some competition. I have never purchased hunters or any other product, so this is rather annoying. I keep blocking the sms numbers but they change all the time. I really would like this to STOP!

I refuse to respond with that sms STOP to opt out, because I know I will have to do it for every number.

Honestly, five sms's in the span of 24 hours is ridiculous.