Hopefully the new app works better

Before upgrading to your new app at the beginning of October I was told that any vouchers still available would be active again within 48 hours. Do I have to keep track by taking screengrabs every time I do an upgrade? The vouchers are gone and I would like them back thanks. Also between 6 and 8 vouchers, redeemable between 25 July and 5 September were never redeemed due to the fact that there was no QR code (it was greyed out) and there was no voucher number. Could I please have the voucher codes so I can redeem them. It's a fair amount o vouchers so please don't make them redeemable within 7 days... Thanks