The letter was sent to 10 major credit card companies, including the "Big Three," Visa, MasterCard and American Express.
ຈົດ ຫມາຍ ໄດ້ຖືກສົ່ງໄປໃຫ້ 10 ບໍລິສັດບັດເຄດິດໃຫຍ່, ລວມທັງ" ສາມໃຫຍ່," Visa, MasterCard ແລະ American Express.