What are the rules for visa extensions at Khon Kean Immigration in Thailand?

Christmas present from Khon Kean Immigration. I know now that the 60 day Extension is only given once on a visa in Khon Kean. This means they check your passport back with all given Extensions till the old visa. If you have 1 time the 60 day Extension during, for me 3 years, the time between original visa and application day, the answer is a clear NO, you go border for 30 day stamp and than I give you this Extension of Stay. My Dutch after tax income ( I know Thai Immigration allows before tax, but Dutch Embassy only does after tax) is due to low exchange Euro to Thai Baht just under 40.000 Thb, also a big NO. So looking forward to a nice train ride early next year from Khon Kean to Nong Khai for a new border stamp and praying that the Euro become a little bit stronger in the next few months.