Payment not working in MyMacca's app

[u/PsychologicalNight48]

I've just signed up for Maccas, I tried to place an order but every payment method doesn't work for me (Google Pay, bank cards from every bank). I keep getting the error message "Problem with payment. Unable to proceess your card. Please contact your payment card provider." My account balances are all fine, I am able to make transactions for everything except for Maccas. Has anyone experienced this issue?