At this point there is nothing indicating that people will be getting a voucher as result of there not being any chips available at a certain time. I understand that people will likely end up not depositing coins if the site state that the chip pool is empty, but if one thing is very clear, it is that people will feel uncomfortable when their deposit is 'stuck' and there is no way to get it out. If I read through the FAQ, there can be found a (what are vouchers) headline, but when you read through everything, there is nothing that explains that a voucher is also a tool that is handed to people at the time there aren't any chips available, and that they will be refilled asap. It will give people a piece of mind in the end if this information is included in the FAQ, and will prevent them from popping up in this thread asking why they are getting a voucher.