It is permissible to help but you must not communicate directly with her as she is a non mahram.

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If she breastfed you five times or more when you were within two years of age or less, she is you r mother and all her children are your siblings and their daughters are your nieces and such a marriage is void and invalid as you are her mahram.

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It is not permissible for you to be in contact with her or to be with her alone in a car.

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