Highly disappointed in their customer service. We ...

Highly disappointed in their customer service. We purchased tickets for the Bush concert on May 7th and we asked then to upgrade our tickets to VIP and were told we could not upgrade at that time because it wasn't yet available...to call back May 1st and we could upgrade then. So we purchased our 3 tickets and thought we would call and upgrade them a week before the show...no big deal. My husband calls this afternoon to verify our confirmation number for our tickets so he can be better prepared to upgrade quickly Monday morning and little does he find out the VIP tickets are SOLD OUT with the exception of ONE. The representative he spoke with today told him their policy on upgrading to VIP changed a couple weeks after we purchased our tickets?!? He asked when the policy changed in which she replied February. We purchased our tickets in February and when he asked to verify the date we purchased she simply said "oh I'd have to go back in the system and check" in which she acted like it was too much hassle to do and brushed him off. He asked if there was anything at all they could do to accommodate us for our troubles and flat out there was NO, absolutely not.
We saw Seether in January of last year and had an amazing time. The venue had awesome sound and we had a wonderful experience there. We were pumped to go back and see one of my favorite bands of literally all time, but this has put a huge damper on our view of your customer service/venue.