This two page consumer fact sheet outlines the pitfalls and costs of mobile phone premium services and how to avoid them.There's a lot more you can do on your mobile phone these days, download ringtones and music, chat, vote, check your horoscope, enter competitions, or find out sports scores. These extras usually attract a premium fee. Often referred to as mobile premium services, they are offered from numbers starting with 191, 193-197 and 199. These services tend to cost more than a standard SMS or phone call.