Very bad customer service

I almost always give people the benefit of the doubt, especially people working in call centres. But my interactions with Momentum Fundsatwork has been absolutely horrible. They don't have answers to your questions and promise to have the relevant people call you back, to no avail. And when I've called back, I've been put on hold until my airtime ran out. I have no idea if Mohammed Karolia is even working at Momentum because no one can get hold of him, or he doesn't respond to them and he never calls back. Not sure where the problem lies,with him or them not relaying the message to him. Your company closes on the 20th of December(a well deserved break for your employees I'm sure),but you don't seem to care about all the people that you're failing and causing more stress to. I'm tired of begging and pleading for a resolution!