Sunderland AFC today issued the following update.
We recognise that many supporters have been frustrated by their recent engagement experiences with the Club and that the level of customer service provided in certain areas has fallen well short of the required standard.
This is completely unacceptable and we are working to address these areas of understandable concern as an immediate priority.
The Club has been in dialogue with various Supporters' Groups throughout the past 48 hours to ensure their feedback - and that of their members - is considered in full.
A further update will be published within the next 48 hours, outlining the steps that will be taken to ensure all aforementioned issues are resolved.