https://www.epo.org/en/service-support/faq/myepo-services/central-fee-payment/making-credit-card-payments/i-tried-pay-fees

I tried to pay fees amounting to EUR 12 000 but it didn't work. Is this an error?

No. A daily limit for credit card payments is set at EUR 10 000 per payer (see also OJ 2022, A18).