Is a buy-one-get-one-free online offer requiring my card details safe?
Not unless it comes from a verified, well-known retailer. Free offers requiring card entry are frequent subscription traps or data theft operations.
Last reviewed: 1 June 2026
Explanation
Advertisements promising a free product — just pay shipping — or a BOGO deal appear constantly on social media. When you enter your card details to pay the small shipping charge, you may be signing up for a recurring monthly subscription in the small print, or your card details are stolen outright. The fine print on subscription traps often authorises full-price charges after a short trial period, and cancellation is made deliberately difficult. These ads frequently impersonate recognisable brands. Before entering any card details on an offer site, verify the retailer is authentic, read the full terms and conditions, and check for recurring charge clauses.
Common red flags
- Ad appeared on social media rather than on the brand's own channels
- URL does not match the official brand domain
- Offer requires card details for a small or zero shipping charge
- Terms and conditions mention recurring billing or auto-enrolment
- No clear cancellation policy
What to do now
- Read the full terms before entering card details
- Use a virtual or single-use card number for trial offers
- If charged unexpectedly, contact your bank for a chargeback
- Report the ad as misleading to the social media platform
Frequently asked questions
Is free-plus-shipping ever a genuine offer?
Yes, some legitimate companies use it as a marketing tool, but they make the subscription terms clear. If the offer obscures what you are agreeing to, do not proceed.