You can issue the rental cheques via the court without a contract. I suggest you go down to the rental dept of the municipality with your contract and any other documents you have (did he notify you of the increase in writing?)
Legally, he can't kick you out of your home without a court order provided you have paid your rental fees within the same becoming due.

Take all docs and explain your situation to the above noted department. They should contact your landlord advising the landlord to renew the lease as per the current tenancy law in force. An increase in rent may not even be an option to him. (Depends on when you signed the original lease)....plus there is a cap on increases until 2010 for leases signed after a certain year and date.

The above department may instruct you to issue the rental cheques to the court.

You need to take some action to hold yourself in the "right" so to speak.