Very very poor service

As per tracking and sms Avon parcel is out for delivery on 6 Dec, still haven't received parcel. According to PE branch they don't know about parcel. How is that possible as it shows that they received it and its out foe delivery. Not the first time that im battling with them. Absolutely poor poor services. The best is that im going off from work and needed the parcel today, so what do i tell customers now. Pathetic.