They do not take POS. This is a cash only establishment. Cash only and attitude driven establishment. Seeing how expensive their meals are, the cost per person could go anywhere from N6-N8K, for a meal including drinks. That being said, they still expect you to be able to cover the exorbitant cost of their blah tasting food in cash. Maybe he is avoiding paying taxes on his profits, but a business should not be operating a cash only establishment in this day and age of cashless society.