"Worst experience I have ever..."

I received a distressing call from aNorthwood employee that was very rude in relation to the inventory check-out for Flat 151 Southside , St John's Walk, B5 4TH. Aside from the rude and unacceptable tone, the employee insisted that money would be taken from our deposit because there was a hair in a drawer and some dust under the sofa. In other words the flat was very clean, but he wishes to nitpick about hairs, and thinks that he has a right to insist that we pay. So I just want to re-cap a few items over the tenancy: We moved in in January. One of the key fobs didn't work. So the inventory check didn't capture something as important as that, but you captured a hair in a drawer. I didn't make a big fuss, we just got it resolved. Northwood also informed the Council that Andrew Green and Emilie Tao had moved into the property. My boyfriend's name is not Andrew Green. So again, happy to criticise a hair in a drawer, but couldn't get the name of the tenant correct? This was a bit of a pain to correct with the council tax. They got water and electricity meter reading wrong as well I had to be hold on call for hours to try to get them resolved! Such a pain! There was dust under the sofa, and the windows weren't clean. The floor was sticky and although generally clean, I am sure there were hairs if one were to look. Perhaps they can provide a picture of under the sofa and the windows to see a before and after, including the insides of every drawer. Soon after moving in we scanned our passports in the office, then we were contacted to come and scan our passports. I said we already have. Eventually Northwood accepted they already had our passport scans. One of the employees (also I believe) turned up at the door and tried to get in. He said he was here to do a normal property check. I said that's fine, but not right now, because I was working from home. I just asked him to contact us in advance. He said he had contacted us in advance and wanted to come in. I said I didn't see any email. He said "he definitely had", again quite rudely essentially calling me a liar, so I asked did he receive a reply? He didn't answer. I then checked all my email and there was no email. I sent an email to Northwood and Mo to say this and to let me know about the next inspection. No apology, no proof of email from Northwood. Quite rude. The elevator in our building was broken for approximately 3 months (could be longer now). We did raise this with Northwood, but didn't hear anything back. Why was nothing done? So 1, 2, 4, and 5 are all Northwood Lettings or inventory clerk errors in the space of about 6 months. Number 6 is actually the biggest issue for me. That was not only extremely inconvenient every day, it also cost us approximately £100 or more extra costs in moving because the delivery men had to go up and down 4 flights of stairs with each box which obviously takes longer. So given that you want to ask for extra money to clean a hair in a drawer or some minor dust under a sofa, I would like to know what compensation they will be providing for the fact that the lift didn't work for all those months? It is part of the service fee and is why we paid the rent we did. So we should receive some compensation for: that service was not provided for months but was paid for in the rent we had to pay extra for removal costs due to it. Perhaps there should have been more focus into looking after the tenants and making less mistakes over the tenancy than there has been on this hair in the drawer or whatever else. I'd also like to add that the flat was clean when we vacated it, and if there is any hair anywhere, it may well have been from the inventory clerk, or perhaps someone else was in the property. Either way, we will refuse any deduction from deposit and raise a dispute unless we can reach satisfactory agreement.