Fed up with till ladies robbing us} p0}

Brought somethings at checkers in cascades Pietermaritzburg and R110 airtime, the lady at the till only gave me the eft copy and not my airtime, had to drive back there waste my petrol them covering for their Co worker, when checking the cameras they told me I can't see them how can I the complaint not be there? What's the use of checking the cameras then? The till ladies have this tendency of robbing us even with change it's sickening honestly.. Please double check your slips before leaving because the CO workers will definitely gang up on you and cover for their colleagues