So why did the Sroubek supporter text the PM?

The Herald reports:

Prime Minister Jacinda Ardern was sent a text message commending the decision to grant Karel Sroubek residency by someone who is both a friend of the Czech drug-smuggler and an acquaintance of hers.
That man was Richie Hardcore, whose Instagram’s account shows him posing with Ardern in multiple photos and referring to her as “a friend” and “the people’s champ”.
National has slammed the Prime Minister after the revelation, with leader Simon Bridges saying Ardern had not been upfront about the message from Hardcore and it was time she told the whole story.
“She’s only told us this much because of our relentless questioning. It beggars belief to say that this would be the first contact that she has had with Richie Hardcore about this case.”

Hardcore is a mate of the PM, like Derek Handley was also. He has her personal phone number.

He texted her commending the decision to give Sroubek residency.

Why would he text her, unless he had already communicated with her about Sroubek?

Why has the PM evaded disclosure of this text for over a month? why did she not reveal it when questioned on it early on?

It will be interesting to see exactly what the text said. Does it refer to other communications?