 ALTOONA, Pa., May 27, 2021 PRNewswire Sheetz , a major Mid-Atlantic restaurant and convenience chain, today announced it will be enabling digital currency payments via Flexa , the leading pure-digital payments network, to provide customers with the ability to pay for items inside the store or fill up their cars, trucks, and RVs at the pump using digital currencies like bitcoin, ether, litecoin, dogecoin, and more. 