Do all Asian embassies require 3 months of bank statements for a 90 non-O visa application?

Good afternoon. I came to Laos to get a 90 non-o visa because Nong Khai imm. doesn't do them. I fill out the paperwork with my 900k baht bank certificate from Krungthhai as proof of funds. They write back that they want 3 months of bank statements, which I can't obtain nor have I had the money in there 3 months. If this goes further south, do all Asian embassies need the 3 month proof of funds or is there somewhere I can go with my bank certificate being enough? TIA for any thoughts.