Hi lavenderblues,
You should earn 10X OCBC$ if the transaction was made via mobile payments or if the transactions are under the MCC categories as shown in our T&Cs.
For each 10X OCBC$ reward earned, 1 OCBC$ will be posted to the Card Account with every S$1 successfully charged to the Card Account. The remaining 9 OCBC$ will be posted to the Card Account by the end of the next calendar month, following the relevant transaction posting date.
https://www.ocbc.com/assets/pdf/cards/titanium_rewards_credit_card-terms-conditions.pdf?rand=1
We apologise for any inconvenience caused should you not have been credited with the right amount of OCBC$. We noted that you have dropped us an email.
^DG