I work for OCS on zero hours, and that's what you get. Behind their friendly nature (akin to recruitment consultants), is a joke security firm. Wages are always wrong, they tell you to work without notice and if you say I have plans you won't get any work. They say they pay petrol allowance but don't let you know how. You won't get pay rates for sites like promised. As they ' forget to tell payrol'. Behind their friendly facade is just another cowboy security firm.