No answer on phone, permanent high call volumes

My hudband and I ordered a few items from overseas well over 2 months ago (one of which is a gift for my husband which I received a notification stating that it had arrived in SA on 12 Aug).

I have tried several times since last week to contact SAPO as well as JIMC. These numbers are permanently experiencing "high call volumes" and then the call just drops eventually. I have also sent several emails with no response.

I need someone to assist me with advising what the current status of my parcels are, and provide me with a local tracking number or at least advise me what needs to be done to get my parcels.