Paying a whole year for an expired service plan

Horrible experience and service received from Innovation Group(Auto and General)service plan.My car went for a service in December 2018 and upon my suprise the service consultation informed me after the service was done that my service plan had expired as per the innovation contact centre.I called the call centre and the lady that answered stated that my service plan expired in Dec 2017 as I only have 2 services one in 2016 and one in Dec 2017 I told her that a debit order has been deducted for the entire (2018) and no one bothered to contact me to inform me that the service plan had expired in 2017 she advised that it was not their responsibility to contact me and that I had to pay a premium for 40 months ending Dec 2019 I spoke to a different consultant whom advised that I had to pay the premium 24/30 months ****il December 2018).Im amazed that no-one bothered to inform me that the service plan expired in 2017 even though I called the call center in September 2018 to update my banking details.Theb I receive a call on monday to confirm if I would like to renew my warrenty plan that expires in June 2019 but I could not get contacted for a service plan that had expired in 2017