On Sunday, July 5, Greece will have a referendum on whether to accept an accord with its creditors. This weekend could be Greece's last chance to get a bailout, or possibly default to the International Monetary Fund. Not only could this be catastrophic for Greece as a country, which also owes billions to the European Central Bank and European Commission, but it could be devastating for the Greek people, who are already limited to a maximum €60 (about US$67) ATM withdrawal in the wake of banks closing.