Threefold Repetition

Does anyone know why the Threefold Repetition rule did not apply to my King on H2 starting on Move 48?
I’ved looked up endless chess.com articles and it should have automatically triggered it.
UNLESS, the user that qualifies for it calls for a draw and then it’s automatically accepted?
[Event "?"]
[Site "Chess.com iPhone"]
[Date ""]
[Round "?"]
[White "Beb1-11"]
[Black "SxCWZRD"]
[Result "1-0"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[WhiteElo "1054"]
[BlackElo "624"]
1. e4 c5 2. Bc4 d6 3. Qf3 Be6 4. Bxe6 fxe6 5. Qg4 Qd7 6. Nf3 Nf6 7. Qf4 e5 8. Qf5 Qxf5 9. exf5 g6 10. fxg6 hxg6 11. d3 Bh6 12. Bxh6 Rxh6 13. Nc3 a6 14. h3 b5 15. Ne4 Nxe4 16. dxe4 Nc6 17. O-O-O O-O-O 18. Ng5 Rf8 19. f3 Nd4 20. c3 Ne2+ 21. Kd2 Ng3 22. Rh2 d5 23. exd5 e4 24. fxe4 Rf2+ 25. Kc1 Rf1 26. Rxf1 Nxf1 27. Rh1 Ne3 28. Rg1 Rh4 29. b3 a5 30. Kd2 Ng4 31. hxg4 Rxg4 32. Ne6 Rxe4 33. Nxc5 Re5 34. c4 e6 35. Nxe6 bxc4 36. bxc4 a4 37. Re1 Rf5 38. Kc3 Rf2 39. a3 Kd7 40. Rg1 Ra2 41. Kb4 Kd6 42. Kxa4 Rc2 43. Kb4 Ke5 44. Re1+ Kf5 45. g3 Rg2 46. Re3 Kg4 47. a4 Kh3 48. a5 Kh2 49. Nc5 Kh3 50. a6 Kh2 51. a7 Ra2 52. Ra3 Rb2+ 53. Nb3 Kh3 54. a8=Q Kh2 55. Qg8 Rg2 56. Ra6 Kh3 57. Rxg6 Kh2 58. Rh6+ Kg1 59. Rh3 Rh2 60. Rxh2 Kxh2 61. d6 Kg2 62. Qf7 Kh2 63. d7 Kg2 64. d8=Q Kh2 65. Qd2+ Kxg3 66. Qe3+ Kh2 67. Qff2+ Kh1 68. Qee1# {1-0}
There are no repetitions of position in that game
Does anyone know why the Threefold Repetition rule did not apply to my King on H2 starting on Move 48?
I’ved looked up endless chess.com articles and it should have automatically triggered it.
UNLESS, the user that qualifies for it calls for a draw and then it’s automatically accepted?
[Event "?"]
[Site "Chess.com iPhone"]
[Date ""]
[Round "?"]
[White "Beb1-11"]
[Black "SxCWZRD"]
[Result "1-0"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[WhiteElo "1054"]
[BlackElo "624"]
1. e4 c5 2. Bc4 d6 3. Qf3 Be6 4. Bxe6 fxe6 5. Qg4 Qd7 6. Nf3 Nf6 7. Qf4 e5 8. Qf5 Qxf5 9. exf5 g6 10. fxg6 hxg6 11. d3 Bh6 12. Bxh6 Rxh6 13. Nc3 a6 14. h3 b5 15. Ne4 Nxe4 16. dxe4 Nc6 17. O-O-O O-O-O 18. Ng5 Rf8 19. f3 Nd4 20. c3 Ne2+ 21. Kd2 Ng3 22. Rh2 d5 23. exd5 e4 24. fxe4 Rf2+ 25. Kc1 Rf1 26. Rxf1 Nxf1 27. Rh1 Ne3 28. Rg1 Rh4 29. b3 a5 30. Kd2 Ng4 31. hxg4 Rxg4 32. Ne6 Rxe4 33. Nxc5 Re5 34. c4 e6 35. Nxe6 bxc4 36. bxc4 a4 37. Re1 Rf5 38. Kc3 Rf2 39. a3 Kd7 40. Rg1 Ra2 41. Kb4 Kd6 42. Kxa4 Rc2 43. Kb4 Ke5 44. Re1+ Kf5 45. g3 Rg2 46. Re3 Kg4 47. a4 Kh3 48. a5 Kh2 49. Nc5 Kh3 50. a6 Kh2 51. a7 Ra2 52. Ra3 Rb2+ 53. Nb3 Kh3 54. a8=Q Kh2 55. Qg8 Rg2 56. Ra6 Kh3 57. Rxg6 Kh2 58. Rh6+ Kg1 59. Rh3 Rh2 60. Rxh2 Kxh2 61. d6 Kg2 62. Qf7 Kh2 63. d7 Kg2 64. d8=Q Kh2 65. Qd2+ Kxg3 66. Qe3+ Kh2 67. Qff2+ Kh1 68. Qee1# {1-0}