That was probably me; i swaer by the stuff!

I buy it on line. Just google it

barley cat

no quotes. Then compare prices, include the shipping costs.
I usually end up doing a quick excel spread sheet, as the lower cost sometimes has a huge shipping cost so it isn't the lowest total in the end. Makes me crazy!!!!

I thought I got it from Jeffers, but I couldn't find it on there just now. They have barley dog, so maybe they are just out at the moment. You can phone them. (Google jeffers to find their toll free number)