You should be ashamed of yourselves. The change in...

You should be ashamed of yourselves. The change in contract is purely so you can increase your bottom line. The price of that profit is the ability for your staff to live their life. It's the equivalent of battery chickens. You have made your staff even more miserable and dependent on you with no predictability in their shift structure or number of hours. You have stolen their work life balance so you can make a few extra quid.
I'll never give you another penny of my money because of this