Harsun in London

My personal experience with Harsun has been terrible. At the very beginning they seemed polite and helpful, but towards the end of my tenancy things started to get much worse.
They failed to accomplish their duties as estate agents by going against the law. Indeed they failed to pay for a broken lock which left me stuck in the flat for hours on a weekend night. I had to pay Locksmith myself and they refused to refund the invoice at the end of my tenancy claiming excuses such as the company not providing details and the fact that the manager could have helped me (as if he would be available on a weekend night and had Locksmith equipment!). Replacing a faulty lock is a legal requirement for both the landlord and those who manage the property (Harsun).
I was charged for various minor issues such as light marks, water marks, bulbs (not replaced as broken and they failed to send an electrician). They took all of my deposit and even asked for money on top! I had to consult the Citizens Advice Bureau and solicitors but eventually left all my money to them due to health issues and stress. I asked them to fix a leak coming from upstairs which left my bathroom wet and slippery for 3 weeks, but my request was neglected (they eventually send someone to repair only after another leak occurred in the building). The staff (I dealt with Agnieszka the whole time) lacks of common sense and will charge you for the slightest thing (even references, £30 per reference provided). On top of that, they increased the rent several times in the space of a few months. If you care about your hard worked deposit, time and health, please avoid this estate agency at all cost.