Superstar Components review for Essential Upsell & Cross Sell

Works great, so simple and easy Only niggle is other offer codes overwrite the discount, would be nice if the "upsell offer" was frozen as it is no matter what shopify discount codes are applied. Eg buy part for £20, upsell another £20 part for 25% off. but when you add the 10% off promotion the 25% discount on the cross sell changes to 10%. i think this will annoy customers. hopefully that is possible to fix in future.