If you are seeing advertising after you subscribed to Solitaire Premium try the following steps:

1. Check your Solitaire Premium subscription is still active. How to view your subscriptions - https://support.apple.com/en-us/HT202039

2. Restart your device. How to restart your device - https://support.apple.com/en-us/HT201559

3. Open Solitaire > go to Settings > select 'Remove Ads' > select option 'Restore Subscription' > you may be prompted to log into your Apple ID to complete the restore (see image below).

If you have any trouble with the subscription please reach out to Customer Support for further assistance.