Never refund penalty money

Around August or so last year I bought an item of eBay to which I sent it through to my aramex global shopper account in New York.everything purchased normal with no interference in invoice or anything.

Item arrives in South Africa and I receive and email from aramex claiming to have to pay a penalty because I had the good under valued etc.

Paid the customs and duties and penalty so I could get my part that I needed.

I used to be in contact with a guy by the name of tiro at the Johannesburg aramex branch.he then told me that they will be refunding me my penalty money and they will be claiming it from the seller of the part.

I received my parcel on nov 21 and the item was purchased around aug.

Till today I have no received my refund nor did I receive a reply to my email from tiro asking about the refund.