Originally Posted by tcook052

None that I know of.

Also dunno how a PNR locator could be one number off and it was more likely your e-ticket number was one digit off.

Lastly, airlines don't just randomly split folks on the same file up without a reason so you sure you didn't change the return to travel separately after the initial reservation was made, which is one reason they could've divided the PNR and created two separate ones.