I believe you have been given incorrect information. A revalidation is something that can be done by the person you're speaking to within about 40 seconds. If they say its going to be done tomorrow then that's a reissue as it has been queued to a different deparftment. To be honest the person on the phone can't really say how long a reissue will take. The e-ticket department currently have a few thousand bookings on their queue and bookings are worked on on a date of travel priority so it may take a while depending on that.

If you post or PM me to let me know the circumstances which led you to have a mismatched e-ticket, I'll be able to tell you what's happening.