Shoppers Discount
On my bank statment

I am totally blind and my bank has just told me that i have shoppers discount coming out of my account at £10 a month... I am only on disability living allowance and wold like it stopped. my name is Simon fox and i am registered blind i have been told that did not check a box or something... is their any way i can get the money back??? if not please stop taking money out of my account.