He had also resigned from the directorates of Seylan Bank and The Finance Company, which are listed companies.
The Ceylinco group has a long history in financial services, and is involved in banking, finance services, property development and a numerous other activities.
"During the last three days, group chairpersons and I realized that The Golden Key Credit Card Company has been involved in a major Credit Card scam," he said.
"The employees of The Golden Key Credit Card Company are only now revealing to us Mr S Khavan M Perera's involvement."
Kotelawala said he will inform the public of the progress of a "rehabilitation plan" for Golden Key and "payment and protection" of customers.
Golden Key customers say they have been experiencing delays in getting cash out of the firm in recent days.
In a separate