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Yeah that.
@HeyHey Every bit of damp we’ve had in our places has been nothing to do with the DPC. They have always been leaking something, something piled against a wall be that soil/render/plaster or poor ventilation. Ventilation has always been the key to sorting it out.
You’ll be fine, it just takes time to suss out where it’s really coming from.
Good luck, not that you’ll need it.
Don’t let the damp survey folks scare you - what is needed is likely to be remedial as per @TW and unlikely to be having tanking injected into random walls, which is what plenty will try and sell you on. Fix causes not symptoms.