Neena
We are also in block 27 02 so we will be neighbours. Sorry to hear you have not yet received your NIE number. We were in Spain last week and spoke our solicitor he told us that he was still waiting for NIE that were applied for in UK dating back to April, we were going to do ours in the UK but he told us it is taking anything upto 5 months. Check with your solicitor he may have them because you will not be able to complete without your number. The only other option is to do it in Spain this only takes 10-15 days.
Good luck and hope you get our NIE soon
Diane and Paul