@Andi **********
it's not about me, I personally know a couple of guys who applied there and they also got a similar situation and had that sort of interrogation. One got denied because the gym couldn't provide a document from the ministry of sport. I got my visa applied there but it was extremely stressful (and let not mention that they asked me to show a work contract with my local company during the time I was supposed to be in thailand. I was like "hey, how can I work for an oversea company if the visa clearly states that employment is forbidden?" and they replied me "you need a job if you want to get your dtv and live there". Finally I got accepted after showing all of my passive incomes and a letter from my parents stating they will support me if I run out of cash while I am in thailand. I repeat, the only positive thing about taipei is that they tend to be fast when it comes to check the documents (but not fast when it comes to the interview, mine was set 2 weeks ahead from the time I sent my application)