How does the re-entry permit process work at Suvarnabhumi for those with extensions under consideration?

Re entry permit at Suvarnabuhmi

Word of warning that the staff at the re-entry boot doesn't necesarilly fully understand the "being under consideration" stamp you get for an in country extension.

Since I had a multiple re-entry permit till 28 jan on my old extension, they did not want to give me a re-entry permit since I am flying back to Thailand on the 24th of jan. However, I need to be back at immigration only at 11 feb to (likely) get my 1 year extension.

I asked again at the immigration office just past passport control and they said I had to redo the extension request. Luckily I did not fly out before I got the re-entry permit, but basically had to beg and convince officers for the re-entry permit.