See the thing is,
the computer program that runs in this case, may be looking at "whether the card holder has transferred any CL from other cards or not?",
thats it.. I am not saying this is how it is working because we don't have how thery written the code...n we are trying to understand ....
When you say if CB card is your second card and you were alloted only 10K , what SBI was expecting may be to organically grow the CL on SBI card itself or by presdeting ITR/Salary Slip..
What I observed fromt he conversation from Retention team sometime back was:
There were a lot of people abused the SBI card system by applying for the a new card and transerring all that limit to CB card and closing the newly opened card... hence they stopped transferring Cl from one card to another..
They are taking revenge now, unfortuantely it is effecting the mass..
Instead what they should hav done, cut off limit only from the guys who closed the cards after transffering CL