[Irisviel is still on-duty at the clinic when she receives Rin's message, but it is way too precious to not answer right away.]

Thank you, Miss Tohsaka. You don't need to get me anything; your well-wishes are more than enough.

[Of course, that leaves the question of just who is advertising Irisviel's birthday -- and as far as the homunculus knows, there can only be one culprit. The fact that Illya may have had contact with Rin is worrying, but she doesn't allow that to cut through the warmth in her voice.]

May I ask who told you?