I read the QPay website, and they make payments to vendors - primary advantage would be you could make your payments to anyone around the world using cash at their kiosk. But, I don't understand why your business wouldn't just use their checks / debit cards to pay their bills.
Also, what type of business is this? Do you think this is usual activity for this type of business (depositing only cash)?
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"...muffins are just bald cupcakes." -- Jim Gaffigan