If you order a parcel from abroad make sure the parcel is not been delivered by SAPO

I ordered a few items from Wish in July this year and none of which were received by the expected date. I eventually did a refund out of frustration. I then purchased another item from the UK on the 09 October 2017; I knew that it would take 10-15 working days for it to be delivered in SA, little did I know it had to go to JIMC for them to do checks at customs. My parcel was delivered on the 25th October it moved to customs on the 26th October, and recently 06th of November the tracking information showed that it was from customs. After having tried for over a week to get hold of someone in the call centre to answer my telephone calls, I'm told that they have a backlog of 3weeks and that I need to call everyday to find out what the status is of my parcel. This is ridiculous! The service is pathetic. Eventually companies abroad will refuse to do any business/transactions with people from SA due to the frustration of having to refund every purchase been sent to SA all because SAPO fails to meet the basic expectation of the customer. I am too afraid to order anything online after this experience.