To terminate your VIP-status, follow the instructions in the "Unsubscribe" section of the support page of Google Play: https://support.google.com/googleplay/answer/2476088?hl=en
You can also terminate your VIP-status on the Topface app page in Google Play: https://play.google.com/store/apps/details?id=com.topface.topface

1. Click the "Cancel" button as seen in the screenshot http://b.cdn.tf/android_gp_sub_ru.png
2 . Then click "Yes" as seen in the screenshot http://b.cdn.tf/android_gp_sub_cancel_ru.png
If everything has gone through correctly you'll see your subscription status as "Cancelled": http://b.cdn.tf/android_gp_sub_after_cancel_ru.png