Extended Voucher Codes at Gousto Go to / Join Merchant Written by Optimus Performance Marketing on June 27, 2017. Posted in Awin, Food, UK Gousto Affiliate Newsletter Extended Voucher Codes at Gousto Two of our incredible voucher codes have been extended! By using the code SAVE50 you can continue to get 50% off your first order! Simply click 'Claim Discount' and your voucher code will automatically be applied. With code PROMO2510 you're also able to continue getting £25 off your 1st box of 3 or more meals and an additional £10 off your 2nd box. Simply click 'Claim Discount' and your voucher code will automatically be applied. Join Gousto Affiliate Programme With AWIN