I’m on section 8 and I think my landlord is trying to screw me over.

This subreddit has helped me with this kind of thing in the past, so I'm hoping you can help me again.

I'm a housing choice voucher tenant. My rent is due on the 1st every month and I always pay my portion of it on time. Sometimes HHA's portion doesn't post to my account on time and I receive an eviction notice on my door come the 5th. When this happens I usually just text or email my landlord and and notify them of the situation (sometimes they don't know because their office has high turnover) and they tell me I can ignore the notice. The last time it happened was at the beginning of the year and the payment was probably around 10 days late so late fees were piling up. I had been emailing HHA with no response (they are short staffed and working from home due to the pandemic so, understandable) so I finally called and was informed that the payment was not only sent on time, but before the 1st. When I told my landlord what they said, they were immediately able to find the payment in their system and they credited back all the late fees. This struck me as odd but I just told myself it didn't mean anything and let it to. Today I received another notice. I text the landlord and again he immediately found the payment and credited my account.

I'm starting to think they are losing my payments intentionally so they can evict me. Am I crazy? And is there anything else I can do to protect myself, legally speaking, besides make sure that I'm using either text or email when I discuss these issues with them so that I have a record in some form of writing?