Account mismanagement

I've queried my account, indicating that I've not received magazines for my subscription for a year and that I've not been refunded once for the magazines. I was told the a query would be sent to the publishing department. After that I got an sms to say my subscription was cancelled. I did not request this. Its done so lets move on. I then got told that the balance and amount owing are different, and different to the SMS I got. I've emailed customer support several times and get nothing but automated responses and, eventually, a status saying email was deleted without being read.

I should not owe anything. TFG owe me for a years worth of magazines I did not receive.