Thank you for your reply. Please see screenshots below. Note that all these orders have been refunded:
https://snipboard.io/NDPgK7.jpg
https://snipboard.io/ka7Uvy.jpg
https://snipboard.io/av5Qbh.jpg
The orders that came through were #3973, #3873 and #3772 so far. There is no common products between these three orders. The only common pattern is that it is the 100th order after the previous order with missing details. Order numbers are sequenced, so they are not the post number, but rather the sequenced order number itself.
Thank you.
