All you need to do is specify remitter_provider_id when creating a single immediate payment. This will take the user directly to the bank’s app or website.
Here are two examples:
1. The first one includes a generic request for a payment initiation that would open the bank selection screen. As you can see, no remitter_provider_id was included in the call. 
And this is the aut-URI from the first response.
2. This is the second example, whereas you can see that a remitter_provider_id was included in the call. In this specific case, the user will be redirected to the bank without seeing a selection screen. 
This is the second URI for the second response.
Both auth_URIs are very similar, yet the second one will skip the bank selection screen. This will only work if the remitter_provider_id is included in the request, instead of adding it won’t work if you add it as a parameter on an existing URI. Please note that we have changed the end of the responses for security purposes as they were an example.
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For more information, check how to create a single immediate payment in our docs.