which badges do you mean? the front Seat
badge is shaped into the front grill so even removing the
badge you'll still see it you'd need to replace the upper grill.
The rear seat
badge is the opening mechanism for the boot so again removing not so much of an option.
Any other badges like cupra FR badges etc are stuck on and spraying an adheasive remover leaving that to sit for a few mins then gently heating with a heat gun and then using a nylon trim tool to gently break the glue is the best way I've found to remove them.