Supposedly Credit One Bank. Caller ID showed 608-802-7026
. I called the number from a different line. Was told that the company was G C Services - then changed it to Credit One Bank. I asked what their call-back number was and the number I was given was (877) 825-3242. Claimed that I had over $100 in unpaid annual fees. I receive statements each month showing a zero balance. Haven't used the card in ages. Wanted me to pay them to free up my credit. Wanted my email address, claimed that they could not mail me a statement. Scam likely.