Lost Oki,
Perhaps, if you copied and pasted it the way it appears on their website, you might have accidently included the period at the end, which, if you look closely, isn't part of the link itself.
From the LEE Website:
If you still can't find the answer to your question, email us at info@leeprecision.com.
At any rate, from past experience with them, I would expect a timely reply and a fast resolution.
Bill