I too phoned Glasgow, but got a far more helpful response than some other posters. Although they couldn't answer my question immediately they took my number and got back to me within a few hours. I was told that although policy had yet to be formally approved the expected way ahead was to cease death in service benefit AVCs. If you are already in the scheme your payments will cease from Apr 05 on, but there will be no refund of contributions already made.
The aim was to impliment this policy as soon as possible. However, if money was still deducted after April it would be refunded. Those in the scheme already would be written to explaining the change.
Anyway, that is what I was told, which doesn't actually make it gospel. But I offer it up for your consideration!!