American Express Platinum cardholders are rushing to spend Saks Fifth Avenue credits and gift cards amid concerns about the retailer's potential bankruptcy. While AmEx states its Saks benefit remains unchanged, customers like Julia Portela are anxious about losing their funds. Experts note that while companies may try to honor gift cards, bankruptcy courts ultimately decide, potentially leaving consumers empty-handed. This rush mirrors past 'run on the bank' scenarios as Saks faces a drain on resources.