You need to follow the following steps:1. For deposit accounts, please call their Decedent Processing Team at 1-866-893-0745 Monday to Friday 8 AM to 7 PM ET. 2. For credit cards, please call Estates Team at 1--866-926-6909 Monday-Friday 8 AM to 9 PM ET. 3. Otherwise, you need to send the original or certified copy of the death certificate, Copy of the will, Proof of authority letter, the ID of the Executor, and any related court order or legal documents. 4. Please include a letter with instructions including the following: requester's name and address; relationship to deceased; phone number; email id; notarization will be required for the beneficiary, trust, and non-U.S. resident.5. Please mail information to: Chase Bank Attn: Decedent Processing Group PO Box 659516, San Antonio, TX 78265Once documentation is received for the request, the authorized person will be notified within 30 calendar days if additional information is needed for completion.