But the original story was that she wasn't given the choice to stay put, which to me makes sense because the place would be needed for another employee.

Naturally, if Charles had to find her other accommodations, he would ask where she wanted to go, and she would choose to move close to her family once it was made clear there were no housing options available in Windsor.

I could deal with them repeating the same story, but that's not they're doing. They are reporting a new version of an event they have previously covered without admitting that the info they now claim is false was what they themselves reported. Essentially saying "Don't believe what my colleagues write, believe me. The fact that I haven't even hinted at having a source for my version is immaterial."

"I've been told" isn't a source. He has to at least give us a clue, such as "by a friend of Angela", "by a palace aide", etc. For all we know, he could be reporting what he was told by a check-out clerk at the supermarket.