Bernice Hi 👋 there,
To add a small detail, which might solve your request partially, it is possible to set up on your card a second PIN number, which you link to a second sub account.
If you use the second PIN, the funds are pulled from the second sub account.
Additionally, the second sub account becomes the automatic back up when first sub account does not have sufficient funds to cover the credit card charge.
more info at this document:
https://together.bunq.com/d/1993-what-is-dual-pin-how-do-i-set-up-a-backup-account
Check the document as not all subscriptions have this option available ✅
I hope 🤞 this further helps.
Regards 🌈
GG