How to personalise the discount message Woocommerce cart
Want to personalise the discount code on the checkout page of Woocommerce? Simply download cart.php via FTP from plugins/woocommerce/templates/cart and look for
<?php esc_attr_e( 'Coupon code', 'woocommerce' ); ?>
within line 128. The words ‘Coupon code’ can be changed to whatever you want them to be.