Hi Freshstart. I understand, it's such a grey area and difficult to prove these transactions etc. Backdating bank statements since 2009 is costly - I've requested an annual Certificate of Balance from our banks and credit card companies which doesn't incur a charge.
The bottom line is we will bombard the PAC with as much documentation as possible - Revenue earning statements/ creche account statements/ employment contracts etc - without incurring costs. I wouldn't worry about the appeal though - you really have the upper hand here and it's a case of having 'nothing to lose' and hopefully adding to the paltry compensation offered.
Would you consider asking those family members to sign a statement drawn up by you to confirm the amounts loaned/ offered/ borrowed on relevant dates? Even if it was cash and the dates are an 'estimate' , we didn't all live our lives keeping records hoping one day we'd be in this situation, therefore, these appeals can offer a general 'overview' of our situations but it would be impossible to record every transaction.
Hope this helps and i will keep you posted on any updates this end.