Subscription ended after only 4month

In September i purchased Sketchup pro for a year. in December my subscription ended. could someone help me? how does this work? i thought it was for a year.

Did you purchase through a reseller?

through the website

Contact Customer Support directly. Contact Support | SketchUp Help

How much did you pay?
Possibly, you upgraded from Shop to Pro, and then the moment you bought Shop would be the ‘anniversary’ date of your Pro plan.
Check your plansetting here:

thank you. going to see both.)