https://www.socialnature.com/products?country=US -login or register and click the apply to try buttons and take the survey. If you’re selected you’ll Get a voucher for a FREE Windowsill Tomato Planter Complete Grow Kit from Back to the Roots (Value $19.93)
They also have these kits available:
Mushroom Grow Kit
Windowsill Lavender Planter
Microgreens Grow Kit – Broccoli
Microgreens Grow Kit – Rainbow
Microgreens Grow Kit – Mighty Mix
Mini Mushroom Grow Kit