How often can you change your name if you are a Lifetime Member? I know once a month, but do you mean like I can change mine on December 31st and then again on January 1st or do you mean I can change mine on December 5th and then on January 5th?
The second option. I'm not sure about how it should be in months with more or less than 30 days, but basically you have to wait 30 days for a new name change.
Also the request must be made in MTF Premium forum : Site Supporters- Premium Name Change Thread (sticky)