A FLAT owner had a lucky escape after his FLOOR collapsed beneath him leaving a massive hole. Furious Liam Spender" nearly fell through" a 40cm by 30cm hole under the carpet of his two-level leasehold flat in Canary Wharf, London, at the weekend.... The broken floor is literally a step too far." I have not had my bill for the cladding issues yet.... But I'll be sending the bill for the floor and the cladding-when it comes-marked for the attention of the chief executive and chairman of Berkeley