If you’re a credit card customer, the money will come from your own bank account, not from your Yonder credit limit.
When you set things up you'll nominate one of your own accounts. A few days before your rent or mortgage is due, we'll collect the money from that account automatically. Then we send it on to your landlord or lender on the day you've chosen.
The money we've collected for your rent is kept aside for exactly that. You can't spend it on your card, and it won't go towards your Yonder balance.
If you're on a Yonder debit account, it works a little differently: the money needs to be in your Yonder balance before your payment date. You can add it manually, or turn on auto top-up so it happens for you.