No communication - package delivery delayed by 10 days so far

A package was sent to me at Winklespruit (Durban South - Amanzimtoti) on the 8th of June from Durban North with overnight delivery. Today is 18th and it still hasnt arrived. Ive logged a query twice on website and Ive only received an email saying the following (no explaination)

Dear Client Please accept our apologies with regards to this matter. This issue is being addressed with our agent and is being worked on accordingly. We will advise with feedback once received

We aim to provide customer satisfaction at all times. We do apologize for any inconvienance caused.

Best Regards Vani Govender

I called call centre on 15th and they said someone would call me back but still waiting.

On tracking website the package has been scanned in other provinces ie Nelspruit and Johannesburg

Im very disappointed in their service especially that noone is contacting me to explain. Package was sent overnight as I needed it for past weekend.