Shake off is a *******

Very poor service regarding the shake off.. I've noticed that when I'm about to win something and even if I have a lot of Vodabucks which I use for megashakes I never seems too win one of the big prizes....Since Friday up unitl Today I can't shake and they locked the 50k which I have 8/9 pieces and is expiring tomorrow... I have 5 numbers and I mean I haven't won a big prize it's unreal...