Biometrics Fees payment after submitting application

[nazgul86]

I recently applied sent my EE application and paid fees but don't recall exactly how was the payment requested for Biometrics.
In my scenario, I applied together with my spouse (secondary applicant) and noticed I only have paid $85 Biometrics Fees from my submitted application. Now, I don't recall if there was a different option to pay for 2x Biometric Fees of a Family Biometric Fee before payment, can anyone recall this?
If I somehow erroneously missed to pay a Biometric fee, how do I address it?