Bro, CSP (corporate) me saare hi ho jayenge......in the respective tier accounts (Diamond, Platinum, Rhodium)!
And the error is because Rhodium (SRB) is being requested for non-rhodium account....Try applying for SRA (CSP Platinum) or DRP (CSP Diamond) - they will get applied.
The problem is with CGSP & SGSP.....where SRA and SRB dont; work, and SBI is yet to make the corresponding cards live for SGSP category