I worked at small diy chain as a security officer on low pay

I worked at small diy chain as a security officer on low pay on £6.98 for a 48 hour+ a week

they then told me I had to go to a very much larger store at least 3 times as big as that store and on my own take a 10p an hour pay cut

and travel twice as far to get there is there any legal things I can do as it seems like slave labour and at the moment one of the managers

has been harassing me for not fully securing the store which all of the normal staff agree with me is an impossible task on my own.

help v v much appreciated please

I worked at small diy chain as a security officer on low pay