Hi Rosie!
If you're not able to locate it in the areas where they keep the grain, see if they have an international section in your store and try and find it there.
Another resource would be Trader Joe's [I'm not sure if they have one in your neck of the woods] I know they have them on the east coast, but th east coast differs from the west coast and that could compromise the possibilities of their having it in stock. You may be able to request that they order some in for you though.
As a matter of fact... if your regular store, "Market Basket" right?, doesn't have it then ask your bulk foods manager if they can special order it in for you. Stores a lot of times will accommodate a customer's request [it's a sure sale for them], so if all else fails, or before all else fails you may want to start with that approach [asking your store to bring in what you're wanting to purchase] the worst thing they can say is no or that they can't get the product in.
[or... in the tougher parts of town they could go as far as running you out of the store, chasing you with a bag of half eaten, peanut butter filled pretzels over head; but that's too far fetched. I think they put a federal ban on activities like that last week or so
so you should be safe.
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