Hello @KieraR8 ,
I can put in a ticket for a rewind with our higher level technical team, they'll reach out once they have an update for the request. While we can't guarantee a complete restoration, the Tier 2 team is very good at what they do. They'll be looking at the logs from the past 24 hours to get your contacts - list membership, contact details, etc. - as accurate as they possibly can from before the accidental deletion.