Problem with dhl

good day Trking no:*** On the 18 of June 2021 i was expecting my parcel and i didn't get it ,after a week i call them i spork to Kekanetswe Ruela to find out what is the delay she said the is a back look at customs she will update me if the is any query .In a week time she send me an email that i must send proof of payment because customs is asking for it ,and i did as she requested. And she send me an email that the is a penalty from customs of R2165.65 because the proof of payment that i send it does not correspond with the one from the suppler . My one was $69.00 dollar which is what i did payed for and the one from the supplier was $35.00 dollar. .And i asked the suppler to send me the invoice so that i can send it to her and she did so .I asked her to send it to customs for reassessment she said if she send it well be like is Froud im must comply and pay the penalty if i don't they will take it to the government state warehouse goods will destroyed or auction by the government. I told her that why should i pay for the penalty because I'm not the one how send the wrong invoice she must communicate with the suppler .And she did so the suppler admitted and apologies for the mistake and send her the correct invoice ,still her does not want to send it to customs she want me to pay the penalty .