coupon for BOG50% lego - help me interpret

[momofmany]

The wording on this coupon is confusing me. Good 11/19 & 20 only, BOGO50%. But I'm having a tough time figuring out if you're only allowed to buy one BOGO50% set, or multiples.

It says one coupon per guest, but later it says "We reserve the right to limit quantities"

So, any opinions?

[OneHotMomma]

I'm not sure about this coupon but if it's from a Babies R Us ad, my store said they scan it once but it would work on more than one item in the same order. So if your store is the same, you could buy 4, use 1 coupon, and get two deals from the one q.