Request for deletion of personal data

I would like the BDIAP to delete all personal data that is held for me in their records and to send me an email to confirm that this has happened. I understand that the personal data which the BDIAP has held has been on a contractural basis (e.g. my membership of the BDIAP) so that when my data has been deleted I will no longer have any link with the BDIAP i.e. I will no longer be a Member or be able to receive grants or bursaries.