Oh. Back to your original question. When you apply online, you have to select a consulate of the country that you are currently in or you are a resident of. As to the ticket, they just want to know when you will be arriving. So if you are a resident of UK and are flying to Paris before going to BKK, just how that in your itinerary. At least that is what I found when I applied for my 90-day Spousal Visa. FYI, going to Thailand and leaving Thailand is so much easier when going through immigration. Meaning you get to go through the Thai Passport Immigration line which is usually short because Thais usually use the autogates.
that would make since. However in Khon Kaen when I needed the letter for my bank account and my license, they required the 90 report which was quite easy. So I think as usual it all depends on which office you are going through. After all this is Thailand and there are no absolutes.
Best to apply for a Thai Visa online before you go. It's an electronic VISA, so you don't need to go to the consulate. I believe you can get a 90 VISA, and then get it extended in Thailand.