Horrible app!

I joined 60sixty from the beginning and I have always been very satisfied with the service. But then came the new app!!😡 My app was updated automatically and it is driving me up the walls! It does not work properly like the old one, it is NOT user friendly, it is extremely slow and refuses to process my payment. I always used to place my order in 5 minutes or less. Today I battled with it for 45 minutes and my order is still not placed or paid. Unacceptable!!