For the community mangement team the phone number is +34966733354
Their email is management@gesfinsl.com
While I was recently out there, a firm was offering deal which works out at 126 euros for your your first year and then 20 euros a month there after.
I too have heard it will be six years before the next phase starts, my apartment looks over the big hole, it does not bother me at all.
Hope this helps.