"Phone users experience difficulties unsubscribing from a service or are unaware of the procedure to unsubscribe from such a service."

"QTel's Customer Service can be contacted by dialling 111."

Yeah I don't know how to unsubscribe to that useless announcements they sent me that cost 10QR per month on my prepaid number. I tried to get the help of "QTel's Customer Service" three times and I guess you ppl already know that it's also useless. In the end I just got myself a new prepaid sim. Problem solved.