Poor customer service

Fedex and freight forwarding partner made error amd advise client that this was corrected for wrong tarrif codes. Despite both parties advising it was updated (main party being fedex), the error was not corrected and resulted in incorrect customs charges of R500 being levied on the customer. To correct their error and misleading information, it will cost R850 to remedy. For what, who knows as when this happens at the post office, it cost ZERO rand. That's a very expensive forwarding email, to correct your own error of not updating the correct invoice as indicated to the customer. Fedex also suggesting to pY R850 to correct a R500 error seems like overreaching to make a profit. When requesting to log as the complaint it seems like the internal teams are unaware of how to log the complaint internally. I am raising here as a record of 2 channels where this complaint was raised so that when it goes to ombudsman, it is clear that Fedex had the opportunity of resolving their error. Very ********* to indicate that all was corrected and then when it is found to have not been corrected that the customer has to pay for the correction. Instead of sending the correction to SARs, trying to make a quick buck of the customer. I will be raising this matter with ombudsman for fwdex to reimburse me that fee as they are wanting to capitalise from the consuner of this mistake between them and their partner company. Why nit acknowledge the error and send the correction to SARs to correct - its clear that this is not the consumers error. I will await your feedback as logging the complaint via email did not work.