When a citizen can avail single window system!

I think that the reason it requires more than one office, clerk, counter,is that each has it's own regulations and requirements. That and someone having to sort through which money goes to which office, and sorting through the printed out paperwork for each, at the end of the day could be a bit overwhelming. Goodness knows there are enough screw up with an individual company. If someone stuck the wrong paper on the wrong stack the consumer would have a bigger headache. I paid, I have a reciept. We can't find it, so you still owe. Oh my goodness. I've seen it happen with credit card companies. And if you pay the second time and they do finally find the initial payment there is always some excuse why they can't/won't return the money. Let's not forget, computers are only as smart as the programmer. The parts house shows this part number for the vehicle application. It's wrong. Well, whomever documented the information into the system is the one at fault but that won't get me the correct part required. Yes, it's exasperating. I fear it would be more so with a single office trying to handle everything.