Never opted for such service but Etisalat (GSM) sends me almost everyday for what I called scams.
Latest scam:
From "GoodLuck" : "Ramadan Kareem! Your mobile shortlisted for next draw DH20000 & 1000 for 5 people. To be rank1 send max SMS to xxxx H Hindi A Arabic E English & get ring tone. Dhs 5."
Can't Etisalat find other way to make some money than to annoy their customers?
How can I get rid of those?