FedEx bad Customer service

Fedex Customer Service is sooo disappointing, rude and disregards clients and the stuff members are not helpful - my package has been delayed due to custom clearance for more than 5 days now, which I have sent the team the required documents: ID, invoice and proof of payment but still my documents have not been sent to customs. Now All my calls and mail are ignored and there is no update from any of the team members. All they do is give conflicting information.

The worst possible customer service. I am desperately trying to clear my package. Customer service are not returning my calls or resolving what should be a very simple issue. YOUR CUSTOMER SERVICE IS VERY DISSAPOINTING!!