Hammer did notice the complainst and here's what they've said today on FB:
Well done to eagle-eyed fans who spotted something amiss with the Captain Kronos DVD. The wrong version was pressed. Apologies. More soon...
With regards the discrepancies between the new Icon discs and the old DD discs, several of the DD restored masters were lost. Details: BBC NEWS | England | London | Residents allowed out after fire
And...
Again, we'd suggest that anyone unhappy with their purchases of the recent Icon DVD releases of classic Hammer titles also comments on Icon's facebook page, or contacts them direct.
And...
More mistakes with the Icon discs... original certs on The Abominable Snowman & Captain Kronos are indeed wrong. Well spotted all who did so. Wrong covers were printed.
And finally (so far) the "wrong" master of The Quatermass Ex/X-periment was authored and pressed so film and cover don't tally (as spotted).