Hi orfoster,
I too did a Subject Access Request and it wasn't particularly informative. It merely demonstrated that the call centre staff seldom entered any information into the system regarding calls or complaints. Either that or O2 was illegally withholding information from me.
I've actually decided to settle with O2 and I'll be looking for a good opportunity to rid myself of them at some point in the future. In fairness to them, however, at least O2 has actually responded to my complaints. I was with Orange for one year and they were horrendous. I was told the only way to complain was to write in to them and my letter was subsequently ignored. Needless to say I left them, never to return, when my contract expired.
Customer service is obviously a rotten job and many of the people engaged in it seem to be determined to ensure that customers know and appreciate this by being the most objectionable possible. There doesn't seem to be much you can do about it as these companies aren't held responsible in law for the amount of time and hassle they cost customers in rectifying their mistakes. It's only if the company itself acknowledges how dreadful their service has been that a customer can expect to be compensated as I have although not quite to the extent I'd hoped.
One suggestion I'd make is that, if you're sending letters to the High Level Complaints department is that you should CC them to the CEO Peter Erskine at
peter.erskine@o2.com. I think he's still CEO. This may have helped in my case as his office was then aware of my complaint.
Cheers,
jahman