At the moment tax relief is not due on bonds. I tried and got the money paid but then lost it after the IR looked into it further.
BALPA are looking for a test case to contest the present situation as they believe that tax relief should be due. There was an article in 'The Log' last year which stated there are 2 avenues to go down when stating a claim. Look thro' your back copies or contact BALPA if you can't find the said article. I have been assured that BALPA are on the case and something will be done sooner rather than later.
Hope this helps.