Tried Friday's code again at Plenty Jackpots just before midnight EST (all 5 were "can't redeem..." earlier) and this time it said "....already redeemed"!  Tried Saturday's at Mighty Slots and PJ's, got "...can't redeem...".  I do deposit there but does anybody know if a deposit is required at EACH site between free chips?  And between say, Friday's and Saturday's free chips?  That sure would add up!