State Bank Of India [SBI] — Linking of mobile no. with savings account

Address:

400601

Sir,
I am having an account in your Majiwade branch. My mobile no. [protected] is already provided with branch; and is linked with may account [protected]. I have already downloaded your sbi pay app for online banking. While registering I am getting message on my mobile, "your phone is not linked with your account". So I am unable to use upi pay app for my account.
help please.
ulhas barve