We're Diamond members. DRI do have a policy of not buying back points - but we are trying to sell a fixed week and DRI told us that the only time they would consider this was if one of us died and we could produce a death certificate. This was a couple of years ago, so the policy may be more rigid now, but it's worth going back to them and asking again.
You do find that people are selling DRI points on eBay now, here's a typical advert, you won't get much for them but at least you'd be shot of the financial liability, and some people are looking for more points - the last time we spoke to a rep they indicated that to buy new, the cost of purchase is going up considerably in the coming months. You might well find that someone on eBay would snap up your unwanted points.
http://www.ebay.co.uk...T&hash=item1e69906e36
I hope this helps.