I started a new thread on this as the last rumour thread got overtaken by non UK stuff.

I received a call from CS at Centurion yesterday and again today and they have confirmed that SPG Plat is no longer a benefit for UK Centurion card holders as of Jan 16th.

SPG has not been totally dropped, the level of membership has been put down to Gold.

For me this signals then end of my relationship with Centurion once the membership fee is due.