Hi since i work at this company i cant give names or places but i have noticed in many asda stores that the treatment of the staff is mostly based on weither the manager likes you or not, not the work or dedication you put into working there to basically run that store..
For example shift swaps and holidays - one person refused certian holidays then weeks or maybe months later another person in same department gets those days off just because the manager or section leader likes them better, or the first person has to arrage cover and shift swaps (though it is not their job) then still gets basically blackmailed to cover extra shifts that they dont want to do to just get a certain day off. Having to argue with the manager to even get holidays that you booked 5months ahead off because they forgot again to put it in the database.
Getting called on days off constantly after stating that you cant come in to cover for someone who hasnt bothered to turn up again and them demanding a reason why not and if the reason isn't good enough they refuse you any extra hours or the person you didnt cover for including the people in the department basically ignore you and is really bitchy.
Harrasment/two faced-ie two staff members being really nasty towards a certain worker (training to be superviser) refusing to work for her, calling her names on a social net work after taking her off and blocking her, to the point where she locked herself in cubical in tears, people manager shrugged and told her to deal with it herself, and head manager didnt want to get involved stating it was womans problems.
Laziness- staff memebers coming in and doing basically nothing ie working on a cage for 2hours then complining about a sore knees then getting sent home, not coming in at all or wondering around the store not going to call outs when its their department and theyr the only ones in and spending most time in canteen upstairs talking its normally the same people and they get away with it but if anyone else tries to have an allocated break which they are entitled to half the time they have to skip it because of work to be caught up with. Also staff who are genually sick having to stay till end of shift even if throwing up (including the staff working with food)
Human resource- not doing their job properly, not willing to help a colleague when found out that they have been put on the wrong tax code and made the colleague sort it themselfs which they can not as PAYE will not talk to any member of asda if they are not a manager or personel or human resources staff, since this april to present it is still carrying on and it has badly affected this person finacialy but the people manager and personel do not seem to be botherd even handing out details of the payroll office which they are not meant to do. People manager basically avoiding any issue that comes theyr way ranging from problems with harrasment from staff or customers to simple uniforms not being ordered does not talk to any colleague that has a problem but stays in the office not getting to know the workers on the store floor.
Pettieness amongst the colleagues is to be honest the worst there is, a few staff that end up going on break alone and sitting alone due to the other wokers not wanting to sit beside them or even worse sit beside them but end of table then move soon as someone else comes in and sits on other table or just move theyr stuff soon as a certain colleague has to due to lake of space plans to sit down, they rather sit on a cramped table than beside that person. but soon as they need someone to cover theyr shifts they are all nice to that worker, same with in departments for example in the bakery department in my store they all get along but soon as one worker isnt in they all complain about her and make fun even managers and secion leaders either join in or encourage this.

thats all i can think of at the moment
so please before you go nuts at a colleague try and remember they get worse from the people that they work for and with
your insults and anger may one day cause a colleague to breakdown, cause themselves injury, quit working or alot worse which i can garuntee has happend