For those that have purchased tickets from ticketmaster. I sent them a quick email as not yet received a refund and this was their response.
We have now fully processed all correctly submitted requests made within approximately the first week of the offer. Therefore, if you submitted your request within this timeframe, your refund (whether full or partial) is likely to have been completed within the last 48 hours or so. Please allow upto fourteen working days for the funds to reappear in your account. All later requests will be completed as soon as possible although we are unable to specify completion dates for the process. No souvenir tickets have been dispatched yet. We are aiming to send all tickets out within 30 days.