When should I go to the local amphur to issue the Kor Ror 22 for my marriage visa before it expires?

The inquiry revolves around the timing for visiting the local amphur to issue the Kor Ror 22 for a marriage visa, specifically asking if it should be done two months or two weeks prior to the visa's expiration. In the comments, users discuss complications regarding changes to visa extension types and the necessity of cancelling current extensions before reapplying, indicating a recent policy shift at immigration offices.