Closing balance is the most important not less than 500 k but I hope you are not going to transfer big amount just in short period , it will be suspicious. Maybe deposit the money into your account little by little till February till it over 500k . A friend of mine apply through Jakarta embassy and she donโt work but her husband made bank statement movement for her just one month before apply with closing balance over 500k .
My friend got 1 time rejected as he put the wrong date and second time he re apply again the next day and they request more docs and as the same day he got approved . This was happened in Jakarta before in Dec . In your case please recheck the documents and can reapply again .