Topman doesn’t have any Live Chat facility but you can still submit your issues here.
In order to contact a live person at Topman, you have two options, you can either call ASOS (owner of Topman) or contact them via email.
Topman Customer Service:
You can contact Topman customer service via phone and email. Unfortunately, they do not offer an online chat service directly and you have to go through ASOS instead.