Refund on apple pay sent to invalid card

I Made a purchase using Apple Pay not realizing the card on my account was no longer valid. The purchase somehow was paid by my bank using my updated card info. I had to return the purchase , still not realizing the old card was on the Apple Pay account, but I haven't received a refund. I updated the correct info in Apple Pay, and the card is for the same bank as the old card but it's been a few weeks and still no refund. I can't find any phone number or means to contact Apple about this.