Not ebay staff here, just buyers and sellers exactly like yourself
When you say it does not function, do you mean
You cannot click on it at all (is it greyed out)
Do you get an error message
Does it do nothing at all
Have you tried clearing cache,cookies etc?
What browser are you using?
Are you on a computer or phone/tablet
Very likely one of the fantastic folks here can help you work it out, but we need to know more than what you have posted
