If you know when the gutters were last cleared, include the date and which sections were attended to. Say what has returned: visible leaves, plant growth, spill-over or a joint drip. Those details help distinguish fresh debris from a problem that was never resolved by cleaning. There is no need to blame a previous visit without knowing the cause.
For Morden, provide the postcode and the affected sides of the home. Earlier photographs can show the difference over time. Describe any change to nearby trees, roofing or access, but do not assume one change explains all the new observations.