Logic Board replaced now no Serial Number

I received my MBP back from Apple (on day...great service) after replacing the logic board (failed video card) everything works great except they forgot to put in the computer's serial number.
Is there anything I can do to put the serial number back in the computer (missing from "About This Mac").
Thanks

Replacement of the Logic Board erases the serial number from memory. You can find it in the usual place--under the battery. If you bring it to your local Mac store they have an application that can restore it to memory so that it shows up in "about this mac". I do not understand why this is not done as part of the replacement process. Probably just to keep us coming back!

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    Logic Board replaced now no Serial...: Apple Support Communities

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