I want all daily cash to go to one Apple Cash account instead of two.

Hello,

I have the Apple Card and currently have a joint owner on the account. I make all of the payments, I handle all of the finances and have done that for 15 years. I went to use the daily cash from a purchase the joint account holder made and noticed it was not in my account but was on his daily cash (he didn't even know that existed).

Is there a way to set it up or change it so that the daily cash from both accounts goes onto a single Apple Cash account? I would like to use this balance to put back towards my principle without having to sign onto another phone to then transfer money to myself.

If not, is there a way to automatically transfer money from one to another (such as like if balance goes over 0.01, transfer balance to xxx). He will not remember to send that money to me and I would like the best answer to this.