Charged for Adobe for Teams - linked to a dead email address

hi, my organisation realised we'd been paying for Adobe for Teams - set up by a previous colleague - and the reneweal reminder was sent to her email. Although the system would have received a 'there is no email' bounce back - Adobe continued to charge for the licence. When we realised we wanted to cancel immediately, but had to pay for another six months, as the contract date was until then. We would like a refund for the past 24 months as it's been charged and linked to a dead email address.CRM:00989000015154