Some limited sales information has been posted at BuzzJack so I'll copy it here. Thanks to the poster Jay. All comments below the sales figures breakdown are by Jay.
#1. Ellie Goulding - River
Total: 78,193
Audio Streaming Units: 77,795 [7,629,118 audio streaming: premium (divide by 100) | 902,255 audio streaming: ad-funded (divide by 600)]
Video Streaming Units: 245 [133,106 video streams]
Downloads: 153
#2. Mariah Carey - All I Want for Christmas Is You (ACR Data)
Total: 74,076
Audio Streaming Units: 69,978 [13,706,535 audio streaming: premium (divide by 200) | 1,734,635 audio streaming: ad-funded (divide by 1200)]
Video Streaming Units: 645 [714,076 video streams] *
Downloads: 3,153
Physicals: 300 (171 on 7" vinyl, 129 on cassette) †
#3. Wham! - Last Christmas (ACR Data)
Total: 73,172
Audio Streaming Units: 68,413 [13,442,568 audio streaming: premium (divide by 200) | 1,440,190 audio streaming: ad-funded (divide by 1200)]
Video Streaming Units: 2,067 [2,249,051 video streams] ‡
Downloads: 2,426
Physicals: 266 (all on 7" vinyl)
* These figures correlate with her position of #19 in the official video streaming chart. The Jukebox Heaven #13 position would add approximately another 840,000 streams to Mariah, which I would estimate to be in the region of 700 to 800 ACR sales (or 1400 to 1600 SCR sales missing from her overall sales total). Evidently 700-800 sales wouldn't have made up the gap required to overtake Ellie.
www.officialcharts.com/charts/video-streaming-chart/
#12 - 849,843 video streams - Dua Lipa - Don't Start Now
#13 - Jukebox Heaven - All I Want for Christmas Is You
#14 - 833,293 video streams - Wizzard - I Wish It Could Be Christmas Everyday
† Oops at Mariah's physical sales being quite weak. The prices were expensive - £13.98 for the 7" vinyl and £5.98 for a cassette, and both were only available via her UK online store which wasn't well promoted (Mariah's socials focused on her US store). It certainly wasn't as well handled as Wham!'s 7" vinyl, which sold 4,859 copies in Christmas week (retailing for a more reasonable £7.99 and it had much wider availability).
‡ I'm still confused by Wham! video streams being so much greater than Mariah according to OCC. They have Wham! with 2,249,051. If you add up Mariah's 714,076 video streams & the 840,000 streams erroneously given to Jukebox Heaven, that's still only 1.55m. The Kworb YouTube data showed that Mariah was achieving almost double the number of video streams as Wham. Where else other than YouTube would Wham have had the edge over Mariah? Something really doesn't add up.