What should I do if my DTV entry stamp in Thailand is incorrect?

The original poster discovered that their Destination Thailand Visa (DTV) was mistakenly stamped for only 5 months instead of the full 180 days upon entry via a land border. They expressed uncertainty about whether to pursue a correction at a nearby immigration office. Community comments emphasized the importance of checking entry stamps immediately and noted that while correcting an air entry stamp is generally possible at any immigration office, correction of a land entry stamp is not guaranteed. Eventually, the poster successfully corrected their stamp at the Chiang Mai immigration office. The thread also addressed questions about the DTV and shared advice on managing immigration issues tied to border crossings.