Please post your SEI, SIB and generated WSDL in full (not snippets) and let us take a look. You can link to your GitHub or any other online repo if the code is large and you don't want to post them inline.
On a separate note, I think you're making a mistake with the SEI. Just having the SIB implement an interface does NOT make it an SEI; you need to specify the 'endpointInterface' explicitly. Otherwise, JAX-WS will generate an implicit SEI and ignore yours.
The above error is evident from the fact that you used a name="HelloToSomeoneService" on what you thought is your SEI but that name doesn't appear as the portType in your WSDL. Instead, the default (SIB simple name) is used.