Poor customer service and bad treatment

I have ordered good from Oversees and the Post office tracking app is not working. i waited for months on goods already at the post office. I called Pretoria Post office HUB yesterday where i had a number of reference numbers and the person who was assisting me told me that he cant be on the phone for long with one client which was very wrong as i am a client and i need assistance. He confirmed that my parcels are at Hercules Post office. Today i went to Hercules Post Office where i was ill treated as well. I was told the parcels are not with them but at the HUB. A white lady whom had no name badge refused to call the HUB to assist me and told me they cannot or not allowed to call the HUB. I explained that i called the HUB and was given dates of when they were sent there, she literally got out of her counter to give me my 1 package that she had and the same package i got was not even among the ones i was told they are at Hercules. As a customer i feel very much unfairly treated, i spend my petrol and money calling this two offices with assistance. I m unhappy and feel the APP is not even updated. This is not right that a branch cannot call its Head Office and feel she did what she did because she didn't wanna help me. I am still will need the Post office but with this kind of treatment i will have problems. I need this addressed as soon as possible.