@Ivor *****
might still be flagged i have two passports and came in on one i hadnt used gor a year was still flagged but obviously with the time there was no problems. Unfortunately as you are from Africa and lots of immagration offences and others are commited by Africans (Nigeria has highest amount of foriegn prisoners in Thai jails) They probably will still scrutinise you and best to be prepared with
*****
baht onward ticket and accomadation. I dont see why the wouldnt accept equivilant in Euros.