You may feel as if you'll lose your chance at a low-interest loan, for example, if you don't commit yourself right now. Don't give in to pressure. No guarantees, of course, but successful scams often result from high-pressure tactics. Commit to nothing until you've seen written documentation of the offer and the organization with whom you've been speaking. Any requests for payment prior to the receipt of sweepstakes giveaways or other prizes are illegal.
Every investment presents at least some risk.
Reputable companies must inform prospective investors of those risks before they commit to anything. The telemarketer demands immediate payment, either by wire service or courier service. Legitimate companies don't request money in this manner. You're asked for your Social Security number. Nor should you give your bank account number, your income, your credit-card number or other personal financial information over the phone.