Generic Code Extension At Slendertone Ireland! Written by Optimus Performance Marketing on December 30, 2013. Posted in Awin, General Promotions, Health & Beauty, Ireland, Offers/Promotions, Voucher Codes Slendertone Ireland Affiliate Newsletter News | Promotions Generic Code Extension At Slendertone Ireland! Slendertone IE are pleased to announce they have extended their current generic voucher code for January. Code: SLEN20 Offer: 20% off €120 Expires: 31/01/2014