England crumbled to a 90-run thrashing in the series-deciding third T20 international against South Africa after being rolled for just 101 on a chastening afternoon in Southampton.
Jonny Bairstow (27 off 30) was England's top-scorer as they wilted chasing 192 for victory, with the hosts razed in 16.4 overs for the second game running as wrist-spinner Tabraiz Shamsi picked up 5-24 and Tristan Stubbs took a stunning one-handed catch to remove Moeen Ali (3).
Jos Buttler's side - who were trying to overhaul their opponents' 191-5 - will end the summer without a home white-ball series win, having gone down 2-1 to India in both T20I and one-day international cricket and drawn the ODI series with South Africa after the third and final game was washed out.
- Scorecard: England vs South Africa, third T20I, Southampton
- England vs South Africa, third T20 international - as it happened
England began the T20I series against the Proteas by cracking 234-6, including 20 sixes, during a 41-run win in Bristol but were then torpedoed for 149 in Cardiff before ending with a dismal display at The Ageas Bowl, at one point going over 50 balls without a boundary during a listless chase.
Roy struggles again for England
Jason Roy's form will be a real concern for England ahead of the World Cup later this year - the opener's scratchy 17 from 18 balls on Sunday meaning he has mustered just 76 runs in six T20Is this summer with a best of 27.
England have 10 more T20 internationals before their World Cup opener against Afghanistan on October 22, with seven games in Pakistan from mid-September and then three in Australia during early-to-mid October.
The Test team, meanwhile, are back in action against South Africa from mid-August, starting at Lord's (August 17-21) before further fixtures at Emirates Old Trafford (August 25-29) and The Kia Oval (September 8-12).
Ben Stokes' red-ball side have won all four of their Test matches this summer, defeating New Zealand three times and India once with the new aggressive style championed by Stokes and head coach Brendon McCullum.
The white-ball outfit, though, have claimed only four victories from 11 completed matches across the 50-over and 20-over formats, going without a home limited-overs series victory for the first summer since 2013.
England wilt as Shamsi takes five and Stubbs bags blinder
Sunday's shellacking in Southampton came as a result of a limp batting display, with Buttler (14 off 10) and Roy falling in the powerplay - Buttler spooning Keshav Maharaj to short third man and Buttler snicking a 90mph Anrich Nortje bouncer behind with a cross-batted swipe.
Roy's dismissal brought Bairstow to the crease at No 4 and he watched on from the other end as wickets tumbled.
Dawid Malan (7), Liam Livingstone (3) and Sam Curran (9) were caught in the deep, with Moeen pouched in staggering style by Stubbs at cover, as he raced to his left and plucked the ball out of the air with his left hand.
Curran and David Willey (0) fell to successive Shamsi deliveries in the 14th over - Willey bowled on the slog sweep for a golden duck - to leave England 79-7 and the bowler on a hat-trick.
Chris Jordan (14) survived the next ball but both he and Adil Rashid (0) were then ousted by Shamsi in the 16th over - Jordan lbw and Rashid caught at long-on - before Bairstow was last man out, hauling Maharaj to David Miller at midwicket, one ball after taking England into three figures.
Hendricks, Markram and Miller star with bat for Proteas
Earlier, South Africa skipper Miller had nailed three fours and a six in an enterprising nine-ball 22 on his 100th T20I appearance for his country.
Miller's cameo added to half-centuries from Aiden Markram (51no off 36) and Reeza Hendricks (70 off 50) - Hendricks' fifty in third in a row after scoring 57 from 33 balls in Bristol and 53 from 32 in Cardiff.
Willey, back in the England side in place of Richard Gleeson, bagged 3-25, forcing Quinton de Kock (0) to chop onto his stumps in the first over.
The left-arm seamer then struck twice in the final over, bowling Miller leg stump before having Stubbs (8 off 4) caught superbly by Livingstone on the deep cover boundary.
England's other highlights in that innings were Moeen castling Rilee Rossouw (31 off 18) with a beauty that turned past the outside edge and Buttler sprinting to square leg to catch Hendricks' hack off Jordan.
The moment of the day, however, was provided by Stubbs and his remarkable catch - the 21-year-old excelling in the field as his team-mate Shamsi shredded England's timid batting line-up.
What they said - 'England looked tentative'
Former England white-ball captain Eoin Morgan: "England's strength is their aggressive batting but they looked tentative in this game, South Africa smothered them. In previous years, England would have played a lot more shots earlier as opposed to giving it more thought, more calculation. You get closer to losing the game than moving it on.
"[Former England head coach] Trevor Bayliss always used to talk about stamping your authority but we didn't see that from England at all. I can't put my finger on it because the personnel hasn't changed that much and the batters, right down to No 8, are very aggressive."
What's next?
The 2022 season of The Hundred gets under way at The Ageas Bowl on Wednesday as defending men's champions Southern Brave welcome Welsh Fire to Southampton, live on Sky Sports (6.30pm on air, 7pm first ball).
The women's competition begins on Thursday, August 11 with 2021 winners Oval Invincibles entertaining Northern Superchargers at The Kia Oval.
The women's tournament starts a week later due to women's cricket's involvement in the Commonwealth Games for the first time.
England - who kicked off their campaign with victory over Sri Lanka on Saturday - are next in action against South Africa on Tuesday (11am start).