is 'maaf' usable in formal situations?
Yes, 'maaf' is usable for both formal and informal occasions.
yes, it very polite.
Is maafkan wrong?
I don't really know how to explain this but the word "maafkan" is usually used in a sentence like forgive him or "maafkan dia" hope this helps
There is also "mohon maaf" (forgive me)
Lol the way the voice says it sounds like weird sheep/goat noises