The premisesClarify who controls the affected area
At a Walworth address in SE17, explain whether you are reporting from a home, shop or managed space. If another person controls a relevant cupboard or adjoining area, flag it early. That information helps organise access without assuming either a shared infestation or permission to work outside your premises.
What you have noticedKeep the account close to the observation
Describe an insect's location, damage or recurring movement rather than starting with a theory about where it came from. We can investigate potential routes where the findings support it. A report from elsewhere in the building may be relevant background, but it does not replace checking the space covered by your booking.