Can I obtain a multiple re-entry permit at DMK and Suvarnabhumi Airports?

"Re-entry permit" & "fine for overstay" counter (office) is same one small office at Don Mueang airport. It is located after passport control and before security screening.

Tell the passport control officer when you are stamping out that you need a re-entry permit.

Between the two. Walk down the stairs, turn right and it's in the far corner.

where in Suvarnabhumi would requrest for this permit relative to the security clearance zone and thai immigration lineup for exiting.

Australian?? What nationality