If you've received a rent increase notice in Townsville, it's important to check your lease agreement first. In Queensland, landlords must provide at least two months' notice for any rent increase. You can negotiate with your landlord if you feel the increase is too high, or you can seek advice from a tenant advocacy group for support. If you believe the increase is unjust, consider reaching out to the Residential Tenancies Authority or visiting their website for more information on your rights and options.