The Department of Transportation (DOTr) has reminded the public about unauthorized value-card merchandise.

In an advisory posted on DOTr's official Facebook page on Tuesday, the proliferation of merchandise, including charms, trinkets, keychains, bracelets, and accessories bearing beep card functionality, which are available for sale through various online platforms, is not considered authorized fare media on the light rail transit.

"AF Payments Inc. (AFPI), who is the legal owner of the BeepTM trademark and logo and the sole ad exclusive issuer of Beep cards, has not sanctioned the sale, use, and distribution of such merchandise. Moreover, such items are not covered by any valid product warranties," the advisory read.

Any person subjected to the use of such merchandise will face penalties such as confiscation and blacklisting.

DOTr said usage of the said merchandise is considered counterfeit, infringing on the intellectual property rights and registered trademarks of BeepTM cards and other licensing brands, images, and designs depicted in the aforementioned items.

"Only legitimately sourced BeepTM cards will be honored at any rail station acceptance points for payment of train fares and for other transactions, including but not limited to add value (top-up), balance inquiry, balance transfer, card replacement requests, and all other rights and privileges as provided for in the BeepTM cards conditions of use," DOTr said.