Expired free trial?

Hi All, I’m new to Zwift so please be gentle. I bought a wahoo kickr which came with some cycling trial apps which included a 1 month trial with Zwift. I downloaded the app on the i phone used the redemption code supplied and paired everything up no problems. 1st ride was great until around the 25k mark a sign comes up the says free trial expired.(not even the 7 day trial) I finished the ride ok however today my 2nd go the avatar sits on the bike and does nothing. I know its connected as the heart rate and watts are registering. I would like to try it a few more times before I decide which cycling app to use.
Any advice at this point would be helpful, Thanks, Dave