Any clothing she wants, tell them to send the bill to Pamela Isley.

[The Isley family is affluent, after all, and Primrose has expensive tastes. Pamela's not going to ask someone she barely knows to cover the costs of keeping Primrose happy. Beyond basic food and water, in exchange for doing the same for another's Pokemon, of course.]

I think she would be happy to help with something like that.