I got a credit card in 1993 and I have lived in Arizona all my life but when I applied for this card I used a California PO Box (we are only 500 yards from the AZ/CA border and because we were living in our motor home and staying in Yuma AZ I asked my parents if I could use there PO Box. My question is, do I have the 3 year SOL of Arizona or will this box make it the 4 year California SOL.