@Mary4579
Sorry to hear about your problems.
The first guest you mentioned is maybe stupid and doesn't know what a 24 hour clock is - the listing says check in 16.00 and check out 11.00. It's not rocket science. Also, who on earth would think check out could be at 11pm?? That doesn't explain why she thought she could check in at 10pm.
Or, she is a liar. She knew your check in/out times and just thought she could ignore them, claiming ignorance.
The second one is baffling. Did they try to get some kind of refund from you? That would explain the bug claim. It's a common scam from guests trying to get a free stay. Otherwise, I guess it is just retaliatory. The guests didn't like being told what to do, in terms of the trash.
Unfortunately, no, Airbnb no longer removes reviews that are inaccurate or an outright lie. If you read the review policy, it clearly states that they won't get involved. The only way to get a review removed is if it breaches their content policy, which these ones don't.
I wish I had better news for you. Once upon a time, you could get a review removed because the guest was lying or the review was retaliatory. That is no longer the case.
One word of advice, when a guest leaves a harmless review, do not respond in an angry or defensive manner, even if the ratings were low or the guest annoyed you (I see you did this in another case). There's no point and it only looks bad for you. The response will appear on your profile, not the guest's (and they may likely never read it anyway) for future guests to see. Only respond to negative comments and aim to write them with the audience (potential future guests, NOT the guest you are responding to) in mind.