How to get the window stickers with the certificate of excel?Ask › Category: Lisbon › How to get the window stickers with the certificate of excel? 0 Vote Up Vote Down Antonio Evans Staff asked 7 years ago My company as been classified as 5 stars for several months but I didn't receive yet the window stickers with the certificate of excellence. Do you know how to aply? Thanks. Please login or Register to submit your answer Username or Email Address Password Remember Me