I think we should create petty cash in Chiang Mai office for clear all expense and Khun Pui take care this. We don't need to open bank account in Chiang Mai.
Now we have advance to Khun Pui 10,000 THB for expense office in Chiang Mai. Please inform that budget for 1 week we can tranfer money to Khun Pui and clear this end of week same branch Hua Hin and Pattaya