when walmart card upgrades to discover is the credit limit the same?
AFAIK and seen GE will offer a CLI when they give you the upgrade offer. That can be YMMV because if you have recieved a CLI recently before they offer the upgrade they may not offer the CLI so close to one granted earlier.
Seriously you should not care about the CL of GE cards when they upgrade. Calling underwriting usually nets you whatever CL you want, Discover or not.
I agree, a call to the backdoor number usually resolves the issue.