No new tickets being generated in response to email

No new tickets being generated in response to email

Hi

the last ticket in our ticket list came in at 12.42 am this morning. Since then, no new tickets have been generated. We have tried sending test messages to our support address ( support@deesetretailinsight.zohosupport.com) and we aren't receiving an acknowledgment back

Can anyone help, this is our busiest day of the week for user requests and we aren't seeing them and don't know whether they have been lost or are backed up somewhere?

Thanks for any help

Rob