This might be helpful information to someone.

Just left Immigration office in Bangkok.

We attempted to extend my wife’s DTV visa however it was denied.

Was told that since my wife was a dependent DTV visa and I was the main holder that she is unable to file extension unless I the main holder extend as well.

Since I’ve flown in and out recently I am unable to extend since it’s only been about 40 days in Thailand.

So we are required to leave the country and enter again.

Hope this information is helpful to someone.

We haven’t done any visa runs because of her pregnancy and she just gave birth in Thailand.