We paid a full years management fee on our apartment upfront last June for June 2006 to June 2007. We sold the apartment in November 2006. I rang the management company about getting a refund for December to June but they told me I would have to sort it out with the new owner. I contacted our solicitor who wrote to the new owners solicitor asking them for the balance. This was in January and we still haven't heard back from them. Are they legally obliged to pay us the balance or should we just write it off?