I found 4 coupons on Couponbirds. And you can save up to 60% off your order.
https://www.couponbirds.com/search/query
Is There Any Codes For Secret Builders?
You have to buy it
Theres a color cheat and clothes cheat.
Yes, there is some codes for secret builders.
They help you get super shills but you have to buy it and unlock the code.