As I wrote recently, I was decided to switch from Vodafone to T-Mobile because of prices they offer. I filed request for number transfer on Sunday and today I got call from Vodafone with attempt to keep me with them.
And I must say they were quite successful. I'm at least considering to stay with them, because current conditions look much better. I only wonder why they don't offer such things automatically to old and good customers (as I was called today). Yes that would cost them money, but this way they would make me more happy, than by convincing on last minute.