The phrase "about this immediately" is correct and usable in written English.
It can be used when you want to emphasize the urgency of discussing or addressing a particular topic or issue right away.
Example: "We need to talk about this immediately if we want to meet the deadline."
Alternatives: "regarding this right away" or "concerning this at once".
Everybody agrees about this immediately.
"If you say, 'this is about this,' immediately you limit it," she worried.
Stalin was informed about this immediately, but even this warning was ignored.
Unfortunately Garibaldi learnt about this immediately after the wedding and, being a hero with traditional male beliefs about female promiscuity, never spoke to her again.
We must do something about this immediately," Fatma Sahin, the government minister in charge of family affairs, said at the hearing, pointing out that Turkish laws do not even agree on the definition of a child: The civil code defines a person as a child until the age of 17, the criminal code until 15 and the child protection law until 18.
(Midwife, SE) I think it's very important to speak about this immediately after the CS.
While tech leaning blogs Gizmodo, Mashable and even Daring Fireball had no qualms about blogging this immediately despite it not having any direct relationship to the verticals they usually cover (Oh Business Insider!), Forbes Tech tried a bit harder and came up with the pretty impressive "Pop Artist Banksy's Intro on The Simpsons Makes Cultural Commentary on Outsourcing" this morning.
They are interviewed on the local news about this, and immediately get phoned by all their immediate family (and as any offspring of divorced parents out there knows - and you're a key demographic for this film, thanks for coming - you can get up to four of those, with extra kids all round if you're especially lucky) who have seen them on the news.
The caterwauling about this started immediately after Welker finished the "r" on his signature on his new Broncos contract, which immediately drowned out the glee in Denver as John Elway won his second straight off-season, Mark Kiszla writes in The Denver Post.
I ask that you write to me about this matter immediately.
Financial markets, worried about this, would immediately raise interest rates on other at-risk eurozone countries, large and small.
