I recommend being detailed and spelling everything out. I applied in Taiwan and had to do an interview because I had term deposits that did have monthly statements and I mostly just had to explain to them that if I had a statement with the same balance in April and then one in November, that it meant that all the months in between were also covered, because they said they couldn't see a statement for September so how did they know I had enough money. Before I left the interview, I checked that they did in fact understand that I had that amount in September and they confirmed they did and I got my visa 2 days later.

If I could have gone back in time, I would have written it out so everything was obvious and you aren't assuming anyone will just understand everything. I thought keeping it simple was key, but instead I would keep it stupid and make sure there's no room for error. They could have just denied me without giving me an interview. I also had to show my conversions to THB when they asked for more info.