What documents do I need for my 90-day report and 30-day amnesty extension in Thailand?

My permission to stay ended 25 July. I had an OA non immigrant based on Retirement. So I'm on Amnesty until 26 September 2020. I'm hoping to leave Thailand on a Repat flight.

My 90 day report is due 12 September 2020. Yesterday I was unsuccessful doing it online. I've been doing it online successfully previously. I received a message to contact my Immigration Office instead.

So today I'm going to Sri Racha immigration to file my 90 day report. I assume I need a completed TM 47.

What else will I need please? Aside from Passport.

Additionally...I need an extension of amnesty.

I have a new letter from the Australian Embassy asking for consideration for an extension of stay from 27th September 2020.

I have proof of 5 attempts to get the Sunday repat flights Bangkok to Sydney.

I have proof of 3 flight cancellations with Cathay Pacific. Paid already.

It's very clear I intend leaving Thailand however current International flight restrictions are preventing me from doing so. I believe I have to pay 1,900 ThB for a 30 day Extension.

I would very much appreciate advice as to what documents I will need today for:

90 Day Report

30 day Amnesty extension.

Thank you.