Leider ist diese Seite derzeit nicht in deutscher Sprache verfügbar.
 
https://www.epo.org/de/node/1230516

What happens if I don't pay the validation fee on time?

If the payment deadline is missed, the validation fee may still be paid to the EPO within an additional two months with a 50% surcharge. If the validation fee is not paid within this time, the validation request is deemed withdrawn and the option for validation is no longer available.