Covid 19 misuse by personnel

Covard 19 regulations in all shops must adhere to, but Checkers Kroonstad is ignoring it at all, when i want enter the local Checkers shop, i must have a mask on and sanitize yes, but inside the shop the personnel of Checkers is walking with their masks under their chin!!!!!Now why must i wear a mask then when enter, there is no Covard rules for Checkers own staff members, why is the shop then open!!!!!!