tax question, page-2

assume they sent you information regarding how to deal with it ??? standard practice
without knowing any more than what you wrote, assume you received the auw at no extra cost.......simply it is the original cost base, less the capital returned, divided by the amount of shares in both coy's at the end of that exercise, =average cost base
and CGT rollover relief is provided when the auw were acquired, ie; scrip for scrip rollover relief
but I do no know details of scrip for scrip
cheers