Conversion from Thai baht into US$ has been in effect at Hua Hin Marriott for years and you MUST inform the staff more then once that you want to have your bill in local currency (baht) and not have it coverted at 7.5% differential.
Originally Posted by
Counsellor
The last time I stayed at the Munich Courtyard, when I went to check out I noticed a sign near the cashier announcing that “direct currency conversion” (or some similar name) was being offered/used, under which the Euro amount of the invoice would be converted to dollars at their rate and, along with a conversion fee, charged to my credit card. This appears to be nothing more than the Dynamic Currency Conversion” which has been mentioned in numerous threads here on FlyerTalk and is criticized by some consumer protection financial advisors
.