I received a call from a different unknown number. It seems to be from Carphone Warehouse or perhaps a related business. I'm a bit uncertain about the purpose of their call since they didn’t leave any voicemail and just disconnected.

I've received a couple of calls from this number recently. The first time, I decided to let it ring out to see if they'd leave a message, but nothing came through. The second call, I thought I’d pick up, assuming it might be a callback from HMRC, but all I got was silence before the line went dead! Quite baffling, really.