I have not been able to buy Kobons or a monthly card for about a month now. I enjoy the game but going into the harem and clicking each "collect" button on a mobile device is tedious and therefore not fun. As such I am sure my gameplay has decreased.
Maybe fix the issue so I could give you money and play more. I think that would mean I would spend more too.
I have done that. I have called my banks (3) to find out if the issue is on my side. they confirmed it's not. I have cleared my browser history. switched computers. I have tried 3 different cards to purchase. still nothing. It is an error within the system.