Mealey's (September 8, 2017, 11:26 AM EDT) -- PHILADELPHIA — Sunoco Inc. is not a party to the contract between customers and Citibank for Sunoco-branded credit cards and cannot compel arbitration of a customer’s class claims over promised promotions under the card agreement’s arbitration clause, a split Third Circuit U.S. Court of Appeals panel ruled Sept. 5 (Donald White, et al. v. Sunoco, Inc., No. 16-2808, 3rd Cir., 2017 U.S. App. LEXIS 17098)....