When should I go to the Local Amphur to issue my Kor Ror 22 for a Marriage Visa before it expires?

The question pertains to when to visit the Local Amphur to issue a Kor Ror 22 for a Marriage Visa before the expiration date. While the original question indicates a concern about the timing (2 months or 2 weeks), the responses discuss broader immigration topics such as the proof of funds required at entry points and the discretion of immigration officers, suggesting that the user's specific question about the timing is not clearly answered in the commentary.