Just want to add a little to confuse everyone even more

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The "UY" refers to the UY of points in question, NOT the date of the transaction. I was able to transfer points from a June 2011 UY AND June 2012 UY in a single call in July of 2011. I banked the 2011 points and all of the points are being used for a trip in June 2012. So, in July 2011, even though I had June 2012 points in my account, I could not use them for a trip starting before June 2012 because that would be considered borrowing. I can not do any further transfers of points with a 2011 or 2012 UY.
Clear as mud?