SBI Rewardz is a loyalty and rewards program offered by State Bank of India (SBI) to its customers. To register for the program, you need to know your SBI customer ID, which is a unique 11-digit number provided by the bank to every registered customer. Here are some ways to find your SBI Rewardz customer ID:

• Check your passbook: Your customer ID is printed on the first page of your SBI passbook.
• Check your checkbook: Your customer ID may also be printed on the first page of your SBI checkbook.
• Visit the bank: You can visit your nearest SBI branch with your passbook and ask for your customer ID.
• Check your welcome letter: Your customer ID may be printed on the welcome letter you received when you opened your SBI account.
• Use internet banking: You can log in to your SBI internet banking account to find your customer ID.

Once you have your customer ID, you can register for the SBI Rewardz program by visiting the programs website and entering your customer ID and the last four digits of your registered mobile number.