Motorplan Expiry Date

I went for service after service I received an email stating my car was there and it was telling me my service plan is going ton expire 16 December 2015 which with me I was shocked coz with my understandingg its suppose to expire next year April 2016 , with the help from Wegege Chanel from Continental PE they said the made a mistake , but now I went there to fix something with my lights they email me again something saying is about to expire on the 17 January 2015 I don't know which is which if its a mistake again how they make those kinds of mistakes and to how many people they are making those mistake , I'm about to get a new car from them now Im worried if they make those mistakes . I'm losing trust with them