A daughter is facing difficulties claiming her late father's PPF account from SBI, even with a will. The bank requires several documents like an application form, affidavit, disclaimer letter, and indemnity bond, which she finds costly and time-consuming. The advice given is that a will alone isn't always sufficient to prove legal heirship, and obtaining a legal heir certificate is often necessary to satisfy bank procedures and RBI guidelines, ensuring the funds go to the rightful claimant.