a. Go through this page to apply for the collaboration you are interested in.
b. You could start and proceed if you choose the one which is open to all. Just follow the promotion we give. If you choose the one that needs to be audited, you will receive a notification email within 24hrs on business days. And then you can proceed if your application is approved.
c. Regarding giveaways, you publish the post first and then will be offered the prize in a voucher code after your giveaway ends. And then you can forward the prize to your winners. For review, you can claim a voucher code to order your glasses for free. And then you are required to publish an honest review on our site and products within the next two weeks after you get the order.