I booked Bally's a couple of months ago for a stay in May. I'm comped for 5 nights Sun-Fri. However, i have now noticed that i have Fri-Sat at Bally's comped as well. But i tried various scenarios to try and re-book Bally's for 7 nights May 9-16 but no such luck. Should i: 1. Keep my current reso for May 11-15. 2. Change my reso to May 9-13. 3. Try to book Bally's May 9-15 over the phone. 4. Keep my reso May 11-15 and then book Harrah's 9/10. Or, perhaps re-book Bally's online using May 9-13 and then using the sandwich when checking in to use towards the extra 2 nights Wed-Thurs? Using my sandwich not to upgrade my room but to add 2 nights to my room stay. I realize the 7 nights would be totally comped, but then again, i am tipping the clerk as well as spending my money for the extra days on their property they ordinarily wouldn't get. Has anyone done this on comped rooms and adding 2 nights also on comped rooms? Correction: I would re-book Bally's online for May 9-13 and then book Harrah's online for May 14-15 even though my reso states i already have those dated booked........but my reso states that i have Bally's booked for 5 nights, not Harrah's. I want stay at CET properties for 7 nights instead of 5.......i have 5 nights already booked, why are they making this so difficult if i want and extra two nights comped? They are getting plenty of money from me anyways considering my gambling money is not spent at Milife or anywhere else.