Hello.

the city in question is in the thracian frontier at these coordinates: x:-109; y:400.

I clicked on war council, in the city guard I clicked on the level 5 towers, planning to upgrade as many as I could to the next level.  A window showing the tower 5 stats opened up with an upgrade button.  I clicked the upgrade button and was presented with the cost of 3500 drachmas.  having upgraded multiple towers at the same time in the past, I assumed this was the cost for upgrading all my level 5 towers.  I had the drachmas so I clicked upgrade.  problem is, only one tower was upgraded.  

I would like this transaction reverted, or to have the correct number of towers upgraded.  the proper cost for upgrading a level 5 tower should be 500 drachmas.  either way I didn't get what I paid for and feel cheated. I want my drachmas back.