Daylight ******* by Postnet

I’m so disappointed with Postnet especially because this was such a reliable and trustworthy business. I recently sent back a pair of shoes in a shoe box to Australia using the Postnet in Broadacres. Sarah, who was awesome in assisting measured the box and entered the measurements slightly more than what the actual measurements were and these immediately threw the cost to a ridiculous cost of around R4000 the shoes cost R5000 so this didn’t make sense. I ask her why is she inputting measurements more than what the box is. She says that’s what they are required to do because this is how the business measures and should they find that she measured under their measurements they will make her pay the difference in cost. I told her this is ridiculous. We both see what the actual measurement is and this is not under measuring and I asked her to use the correct measurements which ended up costing just under R2000. It was painful but I still paid the amount and the parcel left. I was shocked when Sarah called me this week to say Postnet is now asking her to pay the R1800 as they say she undermeasured guys this is ridiculous! This also untrue! The measurements were exactly what we measured. I feel like Postnet is ****ming its consumers into paying exorbitant costs for moving packages. Also why would this over measurement of about 2 to 3 cm result in a substantially higher price than the measurement before? Literally a whole R2000 more?! What?! Now I need to pay Sarah R2000 or R1800 to pay for this ridiculous amount which is untrue. Why do you do this? I didn’t even think of any other courier service because I trust Postnet but now to get this??? This is beyond disappointing… why?! This is daylight *******!