Below's the main body of what they wrote in the unsigned letter before action:
Letter before action
Failure to protect my tenancy deposit with a deposit protection scheme
I, along with [name of two other tenants], are the former tenants of [property address] which you let to us on an assured shorthold tenancy starting on 4 Sept 2010 and again 04 Aug 2011.
I am writing concerning the deposit I paid to you on 1 Sept 2010 as a security against my obligations to you under the terms of my tenancy agreement.
Before my tenancy ended:
I did not receive information from you about the protection of my security deposit with a government backed scheme.
It is my belief that:
you failed to comply with your legal obligations to protect my deposit with a government-backed tenancy deposit scheme.
I have made enquiries of the deposit protection schemes to establish if my deposit is protected, but have been unable to find any evidence that my deposit has been protected with My Deposits.
The law required you to protect my tenancy deposit within 30 days of it being received by you, and provide me with certain information about which scheme you used. As you have failed to comply with the requirements of the law, I am entitled to have my deposit refunded to me in full.
I have previously requested that you return my deposit to me as far back as 18 Sept
I therefore request that, within 14 days of receiving this letter, you pay me the sum of
£3834.29 being the amount of the deposit paid to you less the water bills for the 2 years of the tenancy.
If I do not receive payment or a substantial response from you by 18 Nov 2012, I intend to issue court proceedings in the County Court without further notice. I reserve the right to include a claim for interest, costs and compensation in addition to the amount of the deposit. Please be advised that the courts may order you to pay compensation of between one and three times the value of my deposit.
I will be relying on the Court Civil Procedure Rules Practice Direction: Pre-action Conduct. I must therefore draw your attention to paragraph 4 concerning the court's powers to impose sanctions for failure to comply with the Practice Direction; and inform you that ignoring this letter before action may increase your liability for costs.