The differences in the negotiations relate mainly to taxes and pension cuts. Greece agreed to to phase out a special grant for pensioners with low income by 2018, but rejected immediate cuts to pension payments. Greece agreed to lenders conditions for increasing restaurant value added tax to 23%, if hotels can be kept at 13%. Greece wanted to keep a 30% discount on all value added tax rates in the Aegean Islands. Greece initially suggested increasing corporate taxes to 29%, which creditors rejected seeing that reducing economic growth. Greece then proposed increasing this to 28%. Some experts believe the two sides are not that far apart, and the bigger problem is a breakdown of trust. Antonis Samaras, the opposition New Democracy party leader, and former prime minister in 2014, said Mr. Tsipras "was bringing the country into a total deadlock." The referendum on July 5 he said, "is essentially yes or no to Europe."