If that's the case, then you should send in a support ticket. However, looking at your city, it's quite possible that that is what happened, as I gained 1000 or more from placing 1 event building.
I did, but their support is shoddy at best, they have stolen an expansion I had to pay for from me and when I gave a ticket on it, they sent me a list of 25 things to do and it was highly confusing, so needless to say I NEVER got it back.
Put in a ticket about the constant ERROR when attempting to buy fake diamonds, so guess they don't want my money either, cuz once again, they sent me a list of 25 things to do and NEVER get anywhere, also very confusing.
So, I do NOT expect them to do ANYTHING with this ticket either, I guess they like losing dedicated players.
I play ALL DAY EVERY DAY, and I know what I got from those stupid buildings, and it was less then 3k pts, they STOLE 6000 from me!!!!!! THey owe me over 3k in stolen pts, after taking back the pts we got for those buildings!!!!!! As I said, I play ALL DAY EVERY DAY, and keep an close eye on things at all times, the math is quite simple.