Evri complaint: Parcel not delivered.

I received a message saying my parcel was out for delivery on Sunday 1st of December/ Tracking number H01LFA0215023816. The parcel did not arive. The nect Day Monday 2nd December I recieved a message parcel the saying delivered Monday between 18.00 20.00. The parcel was not delivered.When I tracked the parcel tere was a message saying Sorry your parcel will be delivered the next day ..That would be Tuesday the 3rd December. The parcel was not delivered so I went on your Help chat and raised an enquiry. I reeived an email ing that an enquiry was raised and I would get a response within 24 hours.It is now wednesday the 4th Of December and I have not received.a response. I went back on your help chat again at 22.00 but wwas told I alreadey had an enquiry and I will receive a response in 24 hours. It is now 30 hours since I raised the enquiry and have had no response. I would appreciate it if somone could tell me what has happend to my parcel.