What are the procedures and requirements for obtaining a tourist visa at the Thai embassy in Kuala Lumpur?

Hello,

I have a few questions about the tourist visa in Thai embassy in Kuala Lumpur:

1) I have an appointment scheduled for October 20, but there are earlier dates, can I cancel October 20? Unfortunately, I don't see such an option, or should I just take an earlier date and forget about October 20?

2) How long does it take to get a tourist visa, is it collected on the same day or the next day? Do I need to make an appointment to collect visa via this electronic system? I saw this option in the system, so I'm asking.

3) I am planning to come to Thailand by bus/minivan. I must present this ticket when submitting the application, is a declaration enough?

4) As for the departure ticket, just making a reservation without paying for it is enough?

5) In many Thai embassies they demand at least 20,000 thb in the account, apparently not here, do they have any problems with this?

Sorry for poor english. Thank you for your help :)