App purchase – Invoice Maker PRO: Flex Simple Review

I purchased this app in August 2017 for $7.99, still have the receipt I go to “restore purchase” and I’m not allowed to log in or recover any of my invoices or contacts. It appears I’m not the only one who lost all their purchased property. Very terrible customer service it’s unfortunate because I was comfortable using it before they screwed me
Review by Lost information on Invoice Maker PRO: Flex Simple.