I have to like Thailand! I'm married to a Thai! I love the food and (most of) the people. I get frustrated by excessive beaurocracy and endemic corruption, but I am learning to cope.
You don't mention 2 very important pieces of info ... your nationality and why you're wanting to come. Your profile doesn't give your nationality, but it does say that you work in Bangkok. If the latter is true, then your company should sort things out.
Make sure it's a fully flexible/refundable ticket just in case ... some hotels want full payment up front, some will take a deposit (5000 THB?) and the balance on check in.