How is the Australian and UK market to sell the review management services?

I am stuck on a question. When I get a client onboarded then do they have to wait 3-5 days for A2P verification to be completed to send out review requests or is there any alternate to start sending review requests quickly? I saw on reviewharvest website that the setup takes 30 mins and clients start getting reviews in 24 hours. how is that possible as A2P verification takes 3-5 days?