Please follow the following steps to solve this issue
Make sure the email address on your Suggestic account matches the email address you entered when you made your purchase. If the emails don't match, please create a new account using the email address from your purchase (the one where you received your receipt).
If you have not already, please try hard-quitting the app, then re-launch it. You can read step by step instructions here.
If the steps above didn't help please let us know.