McDonald Korea didakwa menerima fi francais bernilai 544 juta won daripada 22 bakal francaisi antara September 2013 dan November 2016.
McDonald outlasted del Potro 6-4, 3-6, 7-6 (7/5) to notch his first victory over a top-five player and reach his first ATP Tour semi-final.
Peningkatan harga adalah perkara biasa dalam perniagaan.
The hashtag "Golden Arches" had been viewed 2 million times, with many commenters hamming up its porcine associations.
Selected McDonald's restaurants across the UK will hand out one of 1,000 limited edition bespoke, baroque-style black and gold paper burger boxes studded with rhinestones for their Signature Collection burgers.