RCS unprofessional and rude

I have an Edgars account and as we know it is financially backed by RCS. In the past few months I would get a SMS with amount owing to the account R43 for the month and the month after that something like R54 for the month. I however kept on paying R750 pm as I owe around R2200 to my Edgars account. Last month a SMS came through and said I owed something like R1034 for the month. I still paid only R750. My wife attempted to go to Edgars on Saturday and couldn't make the purchase. I also never received the SMS to confirm an OTP.

On Saturday. 2025/02/15, I was contacted by RCS, not knowing I answered the 087 number. The lady introduced herself, cannot remember the name and asked for my DOB or ID number. Now, any person living in today will know you just don't give out your info. I told her she contacted me, I refuse to do it, the phone was then put down in my ear.

Today, 202/02/17, I was contacted again by Kaya (excuse my spelling for the name), the same thing. I refuse to give my info as I DO NOT know if it is a ****. I was then told that they will mark the me as not contactable or not willing to work with them and the phone was dropped.

I find this highly unprofessional. I know they won't miss me, but this account will closed soon.