I'd definitely like to work on your Laravel project and add the promo code field with functionality as needed. I've already built a few web apps using Laravel, and it's actually my first choice / preference when starting a new project as well.
You can expect top notch code at all times :)
Also, my bid might show me as a New Freelancer since you haven't added all the skills like PHP. So you can go ahead and visit my profile to see my experience :)
Looking forward to it.
Best Regards,
Yopesh