i did it myself as to save on RM50 runner fee
i think bank will most unlikely to reject the application unless the applicant record is very very bad & they won't loose a single cent as they have the fd money
bank still put the clause "have right to reject" for fd pledge cc just to cover them self

I believe this applies to all FD pledged cc, not only to OCBC only, where the FD is not allowed to be uplifted, so long as the credit card is active.

If the FD tenure is 12 month period, after 12 months, it will auto renew based on the current rate

Therefore, even if the card is approved, you can't withdraw FD. If you want to withdraw FD, you must first clear all your cc outstanding charges and cancel your cc.

Yes ... I agree. This applies to all FD pledged cc. To put it simply, you can't withdraw your FD so long you wish to hold your FD backed cc.
Withdraw FD then bye-bye cc.