Dear who may it concern,
As you are fully aware that most of shipping lines not charge tracking to customer even container status CY/CY or CY/CFS.
Recently, we just received contact from above customer and would like to inform you that customer unacceptable for tracking charge amount US$ 422.85 for contract number 110314/010 which shipped by Perma shipping line. Customer would like to claim you this amount because they never pay tracking charge. Would you please do negotiate the shipping line to waive tracking charge which is strongly believe that your logistic can negotiate with them otherwise, all customers will ban Perma shipping line service. Please reconsider this matter as quickly as possible.
We look forward to your advise & thank you for your prompt kind co-operation.