So sorry for the cancellation!
Inventory available for pro purchase is fluctuating constantly due to retail demand. We do try very hard to keep inventory updated, but because our manufacturers drop ship and fill pro orders after retail orders, occasionally some orders are cancelled before inventory is updated on our site.
We wish we could replace your cancelled item with an item that is in stock, but unfortunately we cannot. We cannot modify or edit orders once they have been placed. You will need to place a new order for your desired item.
Questions? Contact our customer service team.