This is yet another failed delivery scam, this time purporting to be from PostOffice. The link in the message is no longer active. It would have led you to a form where you have to fill in details which they then use to steal money from you.
The message comes from UK mobile number 07306209306 and it reads:
PostOffice: Sorry we missed you today at 9:55 AM on 29/09. Please book your re-delivery for your parcel here:
https://postoffice-failed-delivery.com