Yup, now the ball is in her court and she has to explain her actions.
Obviously her email works, obviously she is still minding her store, but is not explaining or answering your questions yet. If the items were shipped and lost, surely the automatic refund should have come to you quick as a bunny. Surely if she had no stock, she was able to contact you in these last 4 weeks and let you know that fact and again, issue a refund.
Sometimes it takes a hard dope slap to get someone's attention. The saga continues.