Leah This is a BIG SCAM. These people take your number pretending to give you FREE results on your IQ. However, they lead you to enter a PIN to get your IQ but they don't tell you that when you want to get your IQ (as it seems) they have to charge $3.5 per message and they send messages 3 to 4 x a week. They scam people almost $20 a week if they do not STOP or un subscribe. Vodafone is not willing to refund money as well. So we need to form a complaint against this number. 0800 800 021 - vodafone support - if you have been scammed, please do help us get our money back.

Andy I just got a text from these guys too. No idea where they got my phone number from (I never put it in facebook or anywhere else online). 3 texts in a row asking me to reply with "YES" or "SMART" to get ripped off.

Jay Kay I can't use words to describe this scum. Telecom have at least refunded the charges ($11.97), now have to work out how to stop more coming in. Supposed to be STOP to 4121, will it work?

dave I think this is something to do with a vodaphone scam

melissa like every one else ,i got the same txts saying the same thing and just wanting my number removed. it took all my money so i cant stop it via txt intil i top up my phone again. i think these people are very rude for what they are doing.

Nicola Received 3x SPAM texts from '5416' asking me to subscribe to a brainteaser service. No idea how they have my mobile number, I have never signed up for this service before or use this type of service online. Final text before I called up to an offshore call centre 'mobileservicedesk.com' was 'you haven't replied 'yes' yet with a sad smilely. I asked them to remove me from the list. They wouldn't to start with as said it was a 'free text' and 'i was not subscribed to anything' but i pointed out this is SPAM via text and i didn't want to receive them. I feel sorry for the consumers that get taken in by these types of subscriptions. P.S. this was sent to my Telecom mobile.

Andrew Two text from 4121 in succession at 12:41pm to a work Vodaphone number that is rarely used. Said I had a pin in the first one. Second said I hadn't replied and reply with YES. Third text 10 minutes later said I still hadn't replied and reply with SMART. All had call for help 0800 448 803.

Racheal PS: I have not taken any of the IQ tests at facebook, hence the trawling programe comment.

Racheal Just got a random txt from 5415: your pin is xxxx. Enter ur pin on this site 2 get ur results and brain teasers now. Help call 0800448803. 10.50 sign up, 3.50 pmsg, subscription 3pwk. Tried calling, went to answer phone, sounded like an american, crappy connection. Text 5415 with "STOP" REply was: you do not currently have an active subscription on this service. Yu have not been charged for this message. For help call 0800448803. From reading other msgs on this board, I wonder if Facebook has a "trolling" programe that seeks out the contact details and targets the cell numbers. I've since deleted my cell number from my facebook profile.

DEE As i knw see- alot of people are having the same issues as me- there is no dollar sign in the txt u get sent about the cost- basicly they scam u of of ten buks in 3 mins- i phd the number to demand a refund and the flat refused sayn ther is nuthn they would do, because i authirised the payment- i asked wher ther office was they said Oz- i very much doubt it as the person on the other end of the line, i could bearly understand and the ph connection was terible. Voda ph will do nuthn about it and neither will the scammy IQ people- feeling very ripped off:-(