Crystal - Left value until specific character

Crystal formula LEFT - I am trying to return the value LEFT until it find "EA".  I have the below formula but not working.  Using example below, I want to return KEL9400


Left ({FLCMaster.ProductID}, instr({FLCMaster.ProductID},"ea")-1)
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Ido MilletProfessor of MIS at Penn State Erie and Owner, Millet SoftwareCommented:
Split({FLCMaster.ProductID}, "ea")[1]

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kelsanitAuthor Commented:
this is working when "ea" but some are "EA" and this formula is not picking those up. Is there a way to include both options in this formula?
Ido MilletProfessor of MIS at Penn State Erie and Owner, Millet SoftwareCommented:
Use Replace() to replace "EA" with "ea" and apply the same logic as above.
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