I think you can add a split to your own Fountain.fm account. You do this by adding a "Key" and a "Value". Does podcasterwallet.com allow for this?
You can see the "key" and "value" for your user by going to https://fountain.fm/nunyabidness/activity and clicking on the lightning bolt.
It looks like your value would be: "LusVzasf6nelReDSr3Yi"
The fountain node and key for the value is also there. I hope that helps.