One of Southeast Asia’s biggest crypto exchanges is blaming a technical glitch for the price of Bitcoin dropping down to 300,000 Philippine pesos, roughly $6,100, on Feb. 16. An unknown number of customers of the Philippine Digital Assets Exchange, or PDAX, managed to buy thousands of Bitcoin (BTC) from the exchange at a massive discount, making them local currency billionaires on paper — at least for a few hours. A number of PDAX customers withdrew their purchased Bitcoin up to the exchange’s limit on individual accounts of 1 BTC per 24 hours. PDAX is reportedly demanding these users refund BTC …