DHL not fulfilling promises.

I imported stuff, had to pay customs and fees which I did. Nothing happened, no communication from DHL. Email received telling to fill out documents for clearing which was returned to DHL on 03/07/2020 and resend pn 08/07/2020. Then email on 14/07/2020. From then NO calls were answered, hold on for 386 mins during 2 days. Eventually received an email telling me that I need to pay storage fees! Went to headoffice in Isando, waited for 3 hours, no results! weakest service ever! Another gentleman came in with almost the same grievances.