Automatic payment with Apple Pay failed

Hi all,

I received an email today from Comcast/Xfinity saying that my internet service was about to be shut off due to failed payments and that I had been assessed a $10 late charge. Checking the account, I saw automatic payments from Apple Pay had evidently failed to process last month and this month. Obviously I'm a bit peeved about this and had to grovel to Comcast for a waiver of the late charge and promptly changed my automatic payment method.

Anyone else experience this kind of problem with Apple Pay automatic payments? Any ideas of the cause?