Management agents to block of flats reneged on responsibility?

Hello, I have a one bed rental flat in a small block of flats in Reading. My tenant experienced total loss of electrical power (there is no gas) and after prolonged and in-depth diagnosis by three electricians and the utility companies, it transpired that the fault (metal cutting into cable and rat infestation) came from the wiring from the block car park up to the second floor before entry into flat.

In other words from a ‘common’ area.

The management company said they would pick up the cost for rewiring to the flat and I would pick up any internal work to the flat. The rewiring was done, I paid for the total cost, and the management company have now become completely silent on the matter, not answering my emails requesting reimbursement.

What should I do – take up legal proceedings against them for recovery of their share of the costs?

They are a company with extremely bad reviews on the internet!!!

Thank you,

Janette