this bank was the more difficult of our two to cash in, someone always on holiday etc etc.
I believe our lawyer threatened legal proceedings of some type and they soon paid up - not sure the exact details though, you would need to ask them!
We used Victor at MAM Solicitors (Vera branch) - which is just across the square from the caja murcia branch - handy !!
www.mamsolicitors.com if you want more information, speak excellant english.
hope all ends well.