Why do I need a letter from my spouse for a visa extension after moving provinces in Thailand?

A little updat, today went to CW for an new year extention for my non-imm O thai marriage visa.

Came there at 8 am and at 3 o'clock pm, they told me that my wife had to write a letter which would say that my first extention was done in chachoengsao but that we moved to ladkrabang, this letter was needed so the big boss could approve me moving to bangkok... now they will call me in 2 or 3 days to tell me whether the boss has approved or not and then I have to return to CW with a new updated book bank and I will get my 30 day under consideration stamp.... I honestly never heard this before... since when does a spouse have to write a letter in which she asked for approval that you moved from one province to the other..... any one else ever had this