No delivery of a new card, six months after the previous one expired, Disgusting

Virgin Money card does not even deserve a star from me. I've been a client for more that 10 years. When my card expired last year July 2018 I never received my new card. I've queried with them for past 6 months and everytime they request my contacts and address and promise me that their courier will be in contact with me. Still waiting even today. Now how do I cancel this credit card, I cannot be paying fees on the card I don't use.