To avoid Cashback from being rejected, please be noted that any usage of an unadvertised voucher will not be eligible for cashback. Example of the unadvertised voucher such as voucher code from the bank, voucher code from the 3rd party, etc.
Only the coupon advertised by ShopBack will be eligible for the cashback. You may find the advertised coupon/code from the respective ShopBack-store website or ShopBack apps, then you may go to "Coupons" to see the voucher code we offer. :)