Wrong information provided by agents

I have been trying to close my RCS Card for the past week and have spoken to the RCS call centre numerous times to confirm the process of closing my card. I received a settlement and paid the same day however the process to get the card closed is a nightmare. I have received 3 different email addresses from the agents and each email address keeps on returning. Please can someone confirm what is the right process to follow as it seems that none of the agents have the correct information or is this all part of RCS plans to frustrate client's in order to ensure we don't close our RCS cards. Please advise, Thanks.