So it looks like Corro may be going bankrupt or something. Their website says:
"We are excited to relaunch a new and improved Corro to better meet your equine needs. We will be back soon!
All outstanding orders will be fulfilled. For anything we can help you with in the meantime, please email us at hello@corroshop.com."
However, their FB and IG accounts are filled with complaints from customers who have been charged but received no orders, and can’t get a response via email or phone.
I ordered on April 27 but have not received my order. I’ve emailed four times with no response. I finally opened a dispute with Amex.