Price gouging by a skanky chancer. You need to find another landlord.
Hey, econ genius, there is no such thing as "price gauging". In a free economy, the seller has a right to ask for any amount and you have a right to offer any amount. If those amounts are different, the parties do not enter into a binding contract. Duh!
As far as 60%, by letting the refugees in, you, idiots, increased the demand while the supply of apartments remained the same. According to the law of supply and demand, prices were bound to go up. Duh! And hahahahahahahaha...because that is what I predicted way back. Me, an econ genius...