AWS Free Tier request increasing and i have already deleted everything

Yes, i have been dealing with this since last week. I wanto to close my AWS acc but first, i want to confirm i have nothing in my acc which can cause a bill. I dont know, but the requests the bills shows are increasing and i dont know why. Please, help Dont mind about Relational Database Service, i've ended the instance with help of support 3 days ago

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