If you are an iOS user, please follow these steps to check your subscription.
1. Go to Device Settings;
2. iTunes & App Stores;
3. Click on: «Apple ID: firstname.lastname@example.org»;
4. Then tap «View Apple ID»;
5. Click on «Subscriptions»;
See if you have Voila app there, and if you have - tap on Voila to see more info.
If you are an Android user, check your subscription by following these steps.
1. Tap to launch the "Google Play" app on your Android device. You'll land on your Google Play home screen. Or try through this link: https://play.google.com/store/account/subscriptions
2. Tap the "Menu" icon on the home screen to bring up a menu, and then click "Subscriptions" in the menu. The Subscriptions screen is displayed, listing all of your Google Play subscriptions.
If you have Voila there, choose Voila and you will see more info about it.