Please don't request a CDQ for changing deities. In this case, it's completely unnecessary.
The most foolproof way is to make a post in your approved character thread and make the request. Since you apparenly have some RP that is guiding you that way, mention that and have the priest who mentored your character post there as well. Having supporting information in your Character Development thread is always good as well.
For non-clerics and the undevoted, changing one's deity is not a big deal. If your character was a cleric, that would be a different story, and you would have to go through an amended approval process.
After you post, you can contact a GM in-game and point them to your thread for confirmation. Tihs is an easy change to make.