Henry's advice is good. I do the same. I tell the shop I'm flying next Wednesday when I'm really going on the Saturday. Also, shops want 50% deposit. I negotiate this. Sometimes I get 30%. Sometimes I get 40%. I also insist on trouser fitting the next day. Then, when I pick up I always do another fitting. Always problems. I say I won't pay until they fix. I tell them I change my flight so they can fix. I tell them flight Friday, pick up Thursday. Sometimes, only once or twice, I had to get them to fix more.

In the last 10 years I've probably had 6-7 suits made in Thailand. Search the forum, I've given advice on punting in Thailand in another thread.