Brian_Lourenco -
Welcome to the Community! I see you took the time to answer a question before posting one of your own, so kudos to you! Thank you for being an active part of the Community.
In regards to sending a payment, a single payment can only use one card at a time - it can't combine three cards or multiple funding sources into one payment (although it can use an existing balance if one exists). Cards can't be used to add funds into a balance either, so you might consider either consolidating the cards outside of PayPal.
Thanks!
Adrian
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