Refer to the input text as context and select the correct relationship between 'MasterCard' and 'purchase' from the available options.
Options: location of formation, developer, chairperson, headquarters location

“Accepted in over 210 countries, wherever MasterCard is accepted, the credit cards are by far the fastest way to earn Miles with a ticket purchase to fly on SAA or make qualified merchant purchases,” said Samuel Ashitey Adjei, MD of Ecobank Ghana.
headquarters location