I was in Bucharest Romania and came back to Thailand with a bundle of Romanian Leu. I sent messages to SuperrichThai and Superrich1965 asking about exchanging, both don't appear to do Romanian Leu to Thai baht exchanges.
Finally i went to the SuperrichThai branch at Praram 9 Fortune branch, they gave me a very low rate (lucky they even willing to do this exchange at all). I'm pretty sure there's no way to get decent rate for Leu in Thai, but if anyone knows of a place, please let me know here
ps. If anyone visits Bucharest with a group of friends, you must checkout Asi's play lofts on airbnb!!