ripped offf

found this shoppersdic.co.uk on my bank statements taking £10 per month''sometimes twice going as far back as feb 2016 maybe longer.Have contacted TSB to stop payments and notified their fraud dept, if this goes no place I wil take them to the small claims court for £500 but may be more once I get the date they first started.I certainly did not sign up for this at any time.