Black Wagon Kids review for Google & YouTube

We have been using this app for over a year. However, in December 2021 we noticed that customers were using discount codes that are for internal employees, friends and families. It turns out that any 'active' discount code is being sent to Merchant Center and they in turn open it to the universe. We had to inactivate all our discount codes except for just a few. We had to cancel multiple orders where customers used them. Bad time of year, bad customer relations. We reported it immediately on that day (Dec 10) and have not gotten any word from support since. Multiple shops have reported this problem to no avail. Would be great to give the shop owner the ability indicate what channel the codes can be 'shared' on. Currently we are operating at a big disadvantage with no ability to treat our mailing list customers special.