RCS group is a ****mer

Hi i want to share my dissatisfaction with RCS group i had an account with them and i had a credit of R40000 but someone call me with a number registered as RCS card division they told me that there was someone trying to make a purchase from my account and they ask me to him the OTP from my phone so that they can reverse all that transaction and i give him but later i realize i was a ****mer and after 2 days i call the RCS ***** department and i lodged a ***** case but they responded after a week and told me that i am liable for all the purchase's that was made on account.