An ineffective name for an ineffective regulator....
...seems very appropriate. From what i've read about ICTIS they seem toothless and slow to do anything about offenders. The whole 'premium rate' phone industry in this country is anti-consumer and overly confusing.
Mobile phone networks now routinely charge for '0800' "freephone" numbers. Numerous companies are allowed to use premium, revenue generating, numbers for customer contact including, amazingly, ITV for all of its employees as far as i can work out and to brand them as "local rate" or "national rate" when such terms are no longer used by either the fixed line or mobile operators.
Even "07" numbers which used to be exclusively for mobiles are now used for services charged at up to 50p per minute by mobile operators.