Can I refuse the rental increase if the landlord did not mention it in the notice?

Hi,

I have been provided with a 90-day notice regarding my renewal but the amount was not mentioned (told over the phone that it will be 1000 more than the previous year).

However, when I tried to renew my contract, they told me that the rent has been increased by 4200 more than the previous year.

I have read somewhere that if I am not given a notice wherein the rental increase amount is not mentioned in a written document, I will be able to renew with the same contract as the previous year.

How should I file for that?