<prompt> Human: The card Ive been using gave me 0 Apr for 18 months and doubled my bonus cash from within that time. I see no reason to continue using this card and will be opening a new one with a similar deal. Should I close the current card or just leave it open. Wondering how this with effect my credit score.  <response>: As long as there are no fees, keep the card open. If there are fees, product change to a card with no fees. If youre unable to product change and there are fees, close it. 