Poor Performance

I dont recommend anyone to use this app. Truphone has better connection.
When I try to make an intl call, it ends as soon as I dial a number. I have 20mins full credit remained which I dont think I will not be able to use up. The technical support center responds late.
Im so disappointed with the fact I spent my money to buy credit.

Mana gooden about World Phone, v0.9.13