Good news, so now you just wait for their response, I guess it takes 1-2 months because I have a friend, his timeline is as below:
1 Nov 2019: he submitted docs
28 Nov 2019: he was charged
10 Jan 2020: he received email from MIFI saying that his application is being processed
today 16 Jan 2020: still waiting.
Please update me when you have news from MIFI. Thank you and have a good day.