Package still at customs

My package was received 20 December at Hub. tried calling on the 22 December regarding delivery i was then transferred to a number were no one ever does answer the phone. i want to understand what is the point of contact details when we cannot get hold of anyone?

I am frustrated not knowing what the hold up is. i understand due to public holiday, but please inform your clients of working hours and correct contact details. its so unprofessional being sent from one place to the other.

Someone please contact me! Ref ********** 50545