Editing Advance-fee scam (section)

==== SMS messages ====
Abusing [[Short Message Service|SMS]] bulk senders such as [[Wireless Application Service Provider|WASPs]], scammers subscribe to these services using fraudulent registration details and paying either via cash or with stolen credit card details.{{Citation needed|date=May 2020}} They then send out masses of unsolicited SMS messages to victims stating they have won a competition, lottery, reward, or an event and that they have to contact somebody to claim their prize. Typically, the details of the party to be contacted will be an equally untraceable email address or a [[virtual telephone number]].{{Citation needed|date=May 2020}}

These messages may be sent over a weekend when the staff at the service providers are not working, enabling the scammer to be able to abuse the services for a whole weekend. Even when traceable, they give out long and winding procedures for procuring the reward (real or unreal) and that too with the impending huge cost of transportation and tax or duty charges. The origin of such SMS messages is often from fake websites/addresses.{{Citation needed|date=May 2020}}

A contemporary (mid-2011) innovation is the use of a Premium Rate 'call back' number (instead of a website or email) in the SMS. On calling the number, the victim is first reassured that 'they are a winner' and then subjected to a long series of instructions on how to collect their 'winnings'. During the message, there will be frequent instructions to 'ring back in the event of problems'. The call is always 'cut off' just before the victim has the chance to note all the details. Some victims call back multiple times in an effort to collect all the details. The scammer thus makes their money out of the fees charged for the calls.{{Citation needed|date=May 2020}}