It's always okay to ask for help, if you genuinely need it.
If you genuinely need help, you never should feel ashamed of asking for it.
It's never okay to simply demand or coerce an outcome that would satisfy a genuine need, rather than asking for help.
It's never okay to ask for help that you don't genuinely need, for ulterior or manipulative motives (e.g. just to get attention, or just to feel special, or just to make someone feel guilty, or just to prevent anticipated abandonment by making someone feel guilty).
It's always okay to reasonably decline a request for help.
You never should feel guilty for reasonably declining a request for help.
It's never okay to simply ignore a request for help, if it's possible that the request is genuine.
It's probably not okay to ignore a request for help even if you know that the request isn't genuine.
It's never okay to deflect someone's request for help by lying, changing the subject, shifting the blame, or minimising or denying the person's need for help.
It's never okay to hurt, punish, mock, or shame someone just because she is asking for help.
If you've genuinely asked for help, and have not yet received a reasonable response, then it's okay to ask for a reasonable response to your request for help (a reasonable response being either the provision of the help that you require, or a reasonable declining of your request for help).
It's always okay to reasonably decline a person's request for a reasonable response to her prior request for help.
It's never okay to simply ignore a person's request for a reasonable response to her prior request for help, if it's possible that the prior request for help is genuine.
It's never okay to hurt, punish, mock, or shame someone just because she is asking for a reasonable response to her prior request for help.
It's never okay to deflect someone's request for a reasonable response to her prior request for help by lying, changing the subject, shifting the blame, minimising, or denying.
If you've genuinely asked for a reasonable response to a prior request for help, and you have not yet received a reasonable response, then it's okay to ask for a reasonable response to your request for a reasonable response (a reasonable response, in this case, being either the provision of a reasonable response to the prior request for help, or a reasonable declining of your request for a reasonable response to your prior request for help).