Inaccurate info on Service plan

I bought a car from Ford Silverlakes on 13 January 2017. I purchased an extended service plan which covers the 80 000 and 100 000km. According to the paperwork it expires in June 2021. In October 2019 I took my car for service at the Ford the Glen. After 2pm I get a call saying that my car has not been worked on because according to Innovation group my plan expired on the 19th February 2019. I have not been able to get help, Innovation said I should sort it out with Ford.