How about an absent parent? You havent seen him (or her) for many years and have no idea if they are alive or dead?You dont put in a rejection (still can't believed that law) because you don't know anything about them and suddenly get a bill to pay their massive debt.
Then you'd have to go to court present your case I believe.
One other question... A parent in Poland becomes Ill. Needs to remain in a care home and has no insurance... Again.... The NOK expected to pay for the bills? / part bills?
.Yes, if they want their parents to go to a better care facility. However if your parents can't support themselfs thay can sue their kids for "parents support".