Here is a list and links to the ayuntamientos (town halls) on the Costa Blanca in the region of Valencia Spain. They should provide you with telephone numbers, contacts and information on the town where your property is situated.
Some of these sites have a English option but for the most part they are in Spanish. You can use the Google toolbar translator to view these sites. If you do not have the Google toolbar installed on your computer it can be obtained here. It is free of charge.