Rcs credit *****

I am a victim of ***** that has been done on my account but it has been resolved, however someone logged into my rcs app again. I do not know how they got my details as i am the only one who knows it. Rcs told me to go and get another card AGAIN, i got a new card after a dispute was logged. It seems to me like my details are not safe with them at all because if a hacker can get in so easily it is not right. I do not feel safe using this credit card anymore