I verified my account. Then because it defaults to debit and I didn’t always remember to switch it I got dinged overdraft a couple times. So I removed my bank account off of my paypal. It still says I’m verified even though I no longer have a bank account assigned to it. I don’t know if they have some way of retaining that info after it’s removed or what but I haven’t had a charge to my bank account since. It might be a way to compromise. Attach an account wait for their test payment and then remove it.
This is sort of what I did, I linked to my bank account, but about 3 years later I closed said bank account, they tried to access it once and asked me to remove it, I did and they have never asked me for a new one.
Just a side note on your sisters CCD situation, they would have taken that money off of her CCD or left her paypal in a negative balance, one way or another they would have gotten the money from her.