c# – can’t access the added service reference

I opened a C# mvc project through Visual Studio.

I connected asmx service on another website (multiple)

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The name of these web service references is example, hatdurak, sefergerceklesme and tckimlik. Not working sefergerceklesme

It doesn’t see only one reference for 4 urls in the controller. I’m typing sef nothing comes up.

Selected web service link; https://api.ibb.gov.tr/iett/FiloDurum/SeferGerceklesme.asmx?wsdl

By the way, the link is incorrect or not accessible. Seamless requests and responses are made via SOAP UI.

How can I connect to this web service?

Thank you for everything..