Older people are usually hit with this kind of e-mail messages: “Our refill center has not yet received your request. Please make sure you refill immediately to avoid any delay on future refill requests. To avoid being blacklisted from our pre-approved refill network, you must refill within 3 days. For your convenience, you can now pay online, by using this link” – and scammers proceed to give the poor, worried victims a webpage where they can register their credit cards or bank accounts.
Alternatively, this might also happen when you get messages from “reputable” online pharmacies selling medicine for cheap (especially Viagra and Cialis). You will either get your credit card maxed out or you’ll receive cheap counterfeit medicine sold as the real deal.
How to avoid: never buy medicine online.