Strange call from Barclays 23rd Jan 2024

Very odd call they knew alot of personal details, the number ddn't come from the usual central london location 02073656004 instead with was from up north...

They claimed to want to talk and negotiate... I explained everything in my offer was in my letter. Bit weary to get into this without really knowing who I was really talking to.

They said they'd call back in 24 hours.... it sounds like bullshit