I do envy you for having two bottles of envy. lol.
I'd use up the leaky bottle first since the 'exposure' to air (however minute) could be a cause for concern.
Then I'd send the new bottle to a fellow basenoter in the neighboring country cause I'm a nice guy.
On a serious note, I think you should go back to the place where you bought the first leaky bottle for a one-to-one exchange.