Management don't care
Payroll are never available to talk to about pay issues
They operate a 30 hour undertime bank - meaning any time that you do under your contract, whether it's your fault or not, is put into an undertime bank. You can be paid for the first 30 hours of undertime but after that you will get that money taken out of your pay. Very often management won't rota you in for your contracted hours so you end up accruing lots of undertime
Working hours can be any time 5am to 11pm, very often I wouldn't leave the store until 1am
Rotas change without notice sometimes and you're expected to just fall in with it, and to stay over your shift
Sick notes get lost far more often than they should be - always keep multiple copies for yourself if you ever want to see any SSP