When minimum wage is increased.
Often ... annually I think
Never!!!! You will only get pay rise if you get a promotion, however this is not hard todo. They do give you a £50 sick bonus every 3 months but you cannot be off at any point, they only pay 14.5 hours for a longday ( 2 shifts in on) and usually 7.5 for one shift however doing this makes you user 0.5 hours so you won’t get the bonus