As mentioned previously, yes these 7 vouchers are not redeemable through the merchant center. Redemption will have to be done manually. Can you please inform the customer to provide you with the soft copy of the vouchers?
Besides the soft copy of the vouchers, kindly also assist to draft up an invoice for the vouchers so I can send it to Groupon Malaysia accordingly.
Hope the above is clear. Do let me know if you have any queries. Thank you!