Mice coming in, upstairs & making noise at night under bedroom floorboards

Mice are making noises in the middle of the night under the bedroom floorboards. I think I know where they are coming in - from under the house to the stairs and then up the stairs (underneath) as I can hear them going up and sliding down the stairs sometimes. I have a cupboard under my stairs but I can't work out how to actually access where they are coming in order to block it up.

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Published By:
Z** W*****
Published On
21 Nov, 2020
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07951 92****
London N17 ***
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