WORST SERVICE EVER

I placed an order with United Direct on Sunday evening and delivery was expected today. I have now been called and told that my item was held over in customs and that I have to pay tax on this before it can be released and delivered. In my previous order with the same company, none of this happened. I requested to send proof of payment of the tax due for release and was advised that it wont suffice and I have to wait until it reflects in their bank account. I need that item today an now they are seriously inconveniencing me.