Avoiding taking calls and not responding to problems related to their companyi need to pay customs and vat

I struggled for a week to pay Their system needs to be refreshed and everytime you refresh it's a new process all over I wrote via WhatsApp till now no suitable answer An told my email is wrong yet they communicate with it No one respond to WhatsApp call Chats repeat one circle without help Sent am email am told we are many till now am waiting All because I asked a direct bank account and a relevant person am to email proof of payment so I can get my order