Merchants and other businesses are concerned that by the June 30 deadline, card networks will not be ready to easily install an alternative.
Metro has been operating its 31 cash-and-carry outlets around the country since 2003, but tough competition and substantial investments to maintain operations pushed the Dusseldorf-based multinational to do a thorough business evaluation before deciding to sell.
Since Elon Musk declared his interest in Twitter in early April and sold $8.5 billion worth of Tesla stock, the stock has lost one-third of its value.