Model not closing on thank you page

<Link
  overlay={
    <Modal
      id="my-modal"
      padding
      title="Return policy"
    >
      <TextBlock>
        We have a 30-day return policy, which
        means you have 30 days after receiving
        your item to request a return.
      </TextBlock>
      <TextBlock>
        To be eligible for a return, your item
        must be in the same condition that you
        received it, unworn or unused, with
        tags, and in its original packaging.
        You’ll also need the receipt or proof
        of purchase.
      </TextBlock>
      <Button
        onPress={() => {
          ui.overlay.close('my-modal')
        }}
      >
        Close
      </Button>
    </Modal>
  }
>
    Open Modal
</Link>