Greece will implement changes to value added tax from Monday, the finance ministry said, fulfilling a key pledge in the bailout deal the cash-strapped country reached with international creditors. Prime Minister Alexis Tsipras promised "the streamlining of the VAT system" in an agreement signed with European partners, with VAT hikes due on food served at restaurants and on public transport. In a sign that Greece may be trying to win back trust from its European allies, many of whom doubted that Athens would come true on its promises, the finance ministry said it would begin working in earnest on the changes.