V.W.
I would help her for now. She is probably just a bit insecure, and at daycare she DOES do it on her own. Being at home is "safer" to ask for help, even if she probably wants it at daycare, too. But maybe not from someone she is less comfortable with (someone who isn't Mom).
I'd just help her for now. She's only 2! Give her a couple of weeks more, and then gradually be "busy" sometimes when she asks for help at home. She will gradually begin to do it on her own at home without you having to "deny" her. Just be busy and suggest she "go ahead" and you'll "be right there when you finish ___". :)
That both lets her know you have confidence in her abilities, AND lets her know that you aren't ignoring her needs, that you will be there for her.
:)