I'm sure this is relevant to all Huawei phones, though there doesn't seem much activity here?

Using HiSuite 4.07.300_OVE

With one conversation if I send a text in HiSuite the recipient gets two messages.

At the top of the conversation, at the heading I see +4477xxxxxxx, 077xxxxxxx

I seem stuck with these two identities even though they are the same number of course.

If I send to just the one number on my phone it still gets added to this combined conversation.

Any ideas how to ensure I can send a message in HiSuite so it only gets sent once?

And/or remove the second alias?