[Your name and address]
[Head-tenant’s name and address]
Re: Rent increase at [your address]
Recently you increased my rent from $[amount] to $ [amount] per week. I believe that this rent increase is unreasonable given that the rent you pay the real estate agent [or landlord] is $[amount] per week and one other person in the premises also pays you rent.
I am a sub-tenant and therefore I am covered under the provisions of the Residential Tenancies Act 2010. Under section 41 of the Act you are required to give me 60 days notice of a rent increase. Any increased rent that I pay without 60 days written notice will have to be refunded.
I trust this clarifies the matter.