Subscription Expiration Warnings sent for non expiring accts

[plesk_user]

Hey,
Odd issue, some of our users have reported getting emails sent that their subscription term is about to expire, despite their account having an unlimited expiry date set (see attached image).
The emails sent are like this:

The term of subscription 'example.com', owned by user examplecompany (username 'eg') is about to expire.
> The subscription and all related services will be deactivated by Oct 22, 2011 unless the subscription term is prolonged.

Any idea why the system won't stop sending these messages? Our users are getting quite confused, have forwarded all emails to our own email address for now but yeah.

Thanks

 

[IgorG]

Check status of this subscription with

mysql> select locked,synchronized from Subscriptions where id=xxx;

where id is id of subscription.