I have had this problem. It started about October. I got these messages telling me I had won X number of Euro if I returned text. I automatically deleted all these messages and have had my phone barred from using premium numbers for about two years so I never entered competitions. My December bill included a charge of €5.1732 The numbers were 57079 and 57111. My January bill included a charge of €4.2394 and the number this time was 57500. There is NO point texting unsubscribe, it doesn't work. I called Vodafone and Regtel, not Comreg, they deal with landlines. You will get what they call a shortcode from Vodafone which you will give to Regtel (or maybe it's the other way round, I can't remember now!) and they will stop this happening. As far as I can remember two of the companies involved were Puca Ireland & Opera Telecom. A lady from one of the companies called me and said they would look into it and see about a refund, I haven't heard anything since. Perhaps I will ring Regtel and see will they chase them up again. I think it's disgraceful that companies can send unsolicited messages that cost the receiver.