NB Rhizome preorder

So call me cheap, but I didn’t wanna pay $7.99 for shipping of two hops rhizomes on preorder. I order and paid for them at the new MPLS store, but it just occurred to me how am I gonna know when they are in to pick up?
The store didn’t mention anything about a notification list.

There was an order form with phone and email to fill out. At least I did when I dropped by.

Dang, i must have missed that at the register. The clerk just advised me to hold the receipt.
I guess I’ll call customer service and see if they can add me.