I travelled with northern rail last week (15th august) from Sheffield to Hathersage on your 17:14 train to Manchester Piccadilly.
I purchased a ticket on the train and using contactless failed because of signal. This did not give me a void/rejected transaction ticket. I proceeded to put my pin in for the card and that went through correctly. After checking my bank statement I have been charged twice but the driver wasn’t able to find the transaction on his record.
Is there anything that can be done about this?