What must a client do to get assistance? Your cellphone, online and app are useless to reveerse unauthorised debit orders

What must a client do to get assistance? Your cellphone, online and app are useless to reveerse unauthorised debit orders. So your clients can be de*****ed and you don't care? I called twice and was on hold with no assistance! I logged a complaint and no one has bothered to call, but you are always on time to take your charges every month. Your service is disgusting!