dpd delivery problem

Hi all, yesterday i received email from DPD they received parcel details but have not yet received my parcel. Parcel should be delivered today, but OVCUK still didn’t send it to DPD courier. whats wrong with them? should I act on this or wait another working day for update my parcel status...

Ordered my parcel at 11am on Saturday for Sunday DPD delivery and I’ve had no confirmation of dispatch, anyone else had this before on a Sunday? I’ve had no alert by DPD either saying that it’ll be delivered! Pretty annoyed to be honest if I’ve paid for Sunday delivery and haven’t got it,