Legal notice to pay the rent value I

I’m a tenant, and due to some financial problems this year I’ve been paying my rent pretty later than the date.

My landlord sent me notary notice for April, May and June cheques which I paid him off in cash within due time but still, he has not taken back the case as yet.

I have the copy of the payment receipt which I paid him. Again I got late with my July, Aug and Sept cheques which I haven’t paid him yet and I’ve asked him to give me some time to pay him off the amount.

He’s been calling me on and off and threatening me that he will throw me out of the house, even though he has not sent me any official letter yet.

Now my question is since he didn't withdraw the previous case (April-May-June), can he throw us out on the basis of that old letter (as we paid him the amount of that notice in time)?

Or he has to provide us with a new notary public letter of 30 days again. I want to pay him all the amount but I just need some time. At the end of December, my contract is expiring.