What is Thumbtack doing about fake leads?

Every Monday I am hit with 3-6 charges for leads in my coaching business. Almost 50% of them each and every week are fake leads. Wrong number is the response I typically get but just today I had a lady tell me that she had another person contact her as well. I want to know what thumbtack is doing about people using fake numbers or wrong numbers to purposely inflate their revenue and deplete our budgets and bank accounts? The way it is currently setup is NOT in a way to protect the people and pros who support them and make this community what it is.. Im curious how many others across different professions are experiencing this same thing?