State Bank of Patiala — Phone number change

Address:

151111

From past one month i am asking the branch to change my mobile number, every time they say that we have changed the number but i am still getting all the sms's on my old number. And the worst problem is that i can only change the mobile number at my home branch, other branches are just refusing me to help and my home branch is not at all doing anyything
Branch - sbop (Lehra mohabat)
Ifsc code - stbp0000840