There was an agreement: I do half the work, pay through the seafood 500r., then I send the second half of the data - the rest half of the money.
The seafood was closed, everything was normal, but after he dropped the second part (as well asked to park another field for a separate fee), the answer from the customer did not come (read my messages, but did not answer, then he began to ignore, waited for the answer for 4 days).
I do not advise you to cooperate with the customer.
Thank you for cooperation. I was glad to help solve this task.
The customer clearly sets a technical task and knows what he wants.
I recommend cooperation.
Happiness !