Thanks to
LAX21 for explaining how you can get an E mail "receipt" - showing what you have paid - online in this thread:
http://www.flyertalk.com/forum/bmi-d...ows-taxes.html
So both problems seem to be solved: for unpaid refunds, threaten the "Hairbrush" CC letter to
refunds and/or
credit at
flybmi dotcom to elicit a speedy result; for award-booking receipts go to MMB (cos it doesn't appear in My Itins) and select E-Mail at the top, you can even input a new E Mail address.