Starting July 16, MRT cards from two years ago (and older) will no longer work, but commuters can still transfer their balance to a new card by Tuesday, July 11.
To make life even more inconvenient, you can only transfer your balance at a few stations and during designated hours only. From 6:30am – 9am, you can swap for a new card at Chatuchak, Paholyothin, and Thailand Cultural Center stations or you can go to Rama IX, Sukhumvit, or Silom stations between 4:30pm – 8pm.
Sadly, the period to make a free swap for the new card ended on June 30, so there may be a THB50 fee to get a new card. However, they did give you two and a half years to change your card for free since their initial announcement was in January of 2015.
The old cards that will no longer work have a cartoonish design. If your MRT card looks like any of the cards below, no worries, it will still work.