I recently had all my XXXX credit card accounts ( Active since 1989 ) cancelled, without notice by Citibank. I discovered this, while attempting to make a purchase on XXXX of the cards. Upon calling the Citibank Customer Card Services XXXX #, I was informed that no information was available. I was advised to write a letter to their Security Services Division, located in XXXX XXXX, S.D. 
I subsequently received a written response, that stated Citibank was using their account agreement discretion, to close my accounts without prior notice. I had also asked about my points balance, averaging XXXX per card and they chose not to respond. 
What is my recourse if any at this point, as my account was always current with Citibank and will this have a negative effect on credit score? 
