I was in a flat for 4 years... when it came to moving out they really tried to screw me over! Big time. A couple of grand big time!
Our deposit was also registered with the government scheme, which meant the landlord doesn't just get the money back. We have to raise a dispute...
They tried to charge us with...
A dented cooker hood (they wanted to replace the whole thing, even though it worked and was dented when we moved it)
To clean a bit of grease in the pan draw under the cooker hood ( I took that)
To defrost the freezer ( I took this too)
The flooring in the living room was replaced while I lived there, but a really bad job was done and it lifted, they wanted me to pay to replace the floor.
A massive scrape in the wall in the bedroom (again, already there when we moved in)
and they said that the scuffs were beyond wear and tear.
I argued that like you, we had no pictures from the original inventory, so why should we be penalised for the estate agent/landlord not doing their job properly.
I explained all the problems we had had with the property and they agents lack of interest, and that in 4 years no maintenance had been done to the property, and it hadn't been sorted before we moved in either!
I find it funny that they never said anything about the collapsed sofas! and the damaged carpet in the small bedroom!
Either way, they originally tried to charge us the couple of grand, but the government scheme awarded them £25... felt like a real victory!