Paying for DHL mistake (parcel confused with/for someone else’s and now I have to pay for it)

I have spoken to almost everyone at DHL and eventually someone admitted that they made a mistake on my parcel. She said she confused my parcel with someone else’s (which understandable, mistakes do happen) but even now I am still calling with no success. They are all telling me that they will get back to me. According to the lady, they have an invoice of 25 USD and the invoice on my parcel does not match their records. Can I trust that they are not making a mistake again? Again they are saying I must get the order form sent to them so they can release my parcel otherwise there will be a penalty of R1425. Really, from R1725 -R1425? They made a mistake why can’t they compensate me for all the inconvenience they have caused because I also used and still using my airtime to call them? What in the world can one do to get the help that they need really? Now I am paying for the mistake that they made and yet I am the victim. Yes, victim! So I must pay when they can’t for confusing my parcel with someone else’s. Why though? When I checked the difference it is only R70 and yet they are making me pay R1425. All they want is to see me pay the money that I DO NOT have. I do not have it I would have paid long ago and cut ties with them because wow, they are TeamTooMuch.