We are working to make our Terms of Service agreement easier to read in order to provide you with better services while protecting your personal data. We hope you can spare a few minutes to read the recently updated User Terms of Service.
User Terms of ServicePrivacy Policy
if it is greyed out usually that means you don\'t have the items needed to exchange or you have reached daily/event limit. check those, then if not the case, add a SS of the item you are trying to get. that may help.