Je was op zoek naar: 提出答案则要难得多 (Chinees (Vereenvoudigd) - Engels)

提出答案则要难得多。
it is much harder to suggest an answer.

如果索赔人未能对这一通知作出答复，则要正式向索赔人发出一份第15条通知。
if a claimant fails to respond to that notification, the claimant is sent a formal article 15 notification.