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I just found the following information regarding oat matzah:
http://www.kosherinfo.com/oatmatza.htm
This will be available until Pesach.
To mail order call 410-358-5910
Rabbi Ephraim Kestenbaum in England 011-44-181-455-9476
Shemura Machine-made is $16.00 per one pound box and Hand-Matzah is
$16.00 per approximately 1/2 pound, 3 matzos.
Sorry for the second message.
Betsey Carus
Baltimore, MD USA