Can you tell me which credit card accounts are allowed to open without a signature? A signature on a credit card, open ended account, one in which a series of ongoing transactions is expected, does not make something a written account.
Buying a car through installment payments, signing a promissary note are examples of written contracts. A credit card is an open ended account by it's very definition.
What debts, that are open ended, would come under the 3 year SOL then? Can you name any?