Shoppers Discount
Unauthorised money out of my account

I recently checked my account and found that the company called Shoppers discount has deducted £10 out of my bank without my knowledge.

I do not remember being a member and even if I were, what am I paying them for??

I wish to take this further as this is theft!

I do not buy anything from them, how they even got my bank details, I do not know..

My lawyer needs to hear this, I am on a low income and can not make ends meet as it is, what more when a company decides to swindle me of my hard earnd £10??