No service

First they want me to pay when the goods are still in Germany and no guarantee it will arrive here in South Africa. Its the kind of device easily ******. Then when it does arrive and I want to pay, only to discover there are no payment details. The invoice says payment detail but there is no account number and which of the 3 Standard Charter options to use. I tried calling but after the 3rd call gave up. How do these people survive in a competitive industry?