Update: This has now been resolved. Apologies to any customers who had delayed or duplicate responses due to this.
We would however remind you that our suggested method of ticket submission is via help.onapp.com so you don't have to worry about any potential email related issues.
We've had a report some tickets submitted via email have not reached our helpdesk over the last few hours.
Zendesk, our helpdesk provider has confirmed the issue and are working to resolve this as soon as possible, in the meantime please create and update your support tickets via our support portal directly to avoid delays in your ticket processing.
We'll update this post once we have confirmation that this has been fully resolved.