Have the other serious issues regarding the mismanagement of funds been resolved ?, have those who fell victim to the scam been reimbursed?, is this new appeal sourced from a genuine charitable organisation?.
I fear the controversy preceding your appeal (particularly since you are a new member), may well have had an effect which could prove detrimental to your cause.
I already make contributions to an organisation in the UK and would be reluctant to subscribe to yours on account of the foregoing.