Threefold repetition issue otb

Today I played my first OTB tournament in some time. The time control was fast, so the arbiter said that flagging was allowed.
The issue came when we reached a Q+P v Q+P endgame. I was just kind of repeatedly checking his king for a draw. I had like 10 seconds on the clock. We repeated several positions multiple (more than 3) times.
He absolutely denied it even though I'm 100% sure we repeated not 1, but several positions multiple times.
The arbiter was watching everything that was happening. I called him to claim a repetition but I didn't know how to do it.
1st attempt: I claimed a repetition. But it was in my opponents turn, so it was turned down. The arbiter explained that I had to make the claim in my turn.
2nd attempt: I claimed the repetition in my turn, but it was the turn after the repetition, so the arbiter explained that it was too late.
3rd attempt: We reached a repetition but my clock flagged so I lost
Right after the loss, my opponent came to be and told me: "I think it was a repetition actually"
What do you think of this? It must also be said that both the arbiter and my opponent have a history of being kind of "rude". https://speedtest.vet/
I got this,...
@1
"The time control was fast" ++ How fast? Were you writing moves on a score sheet?
"I had like 10 seconds on the clock." ++ So you were no longer writing moves on a score sheet?
"We repeated several positions multiple (more than 3) times. He absolutely denied it even though I'm 100% sure we repeated not 1, but several positions multiple times."
++ When neither players writes moves on a score sheet, there is no way to prove that.
You should call an arbiter as a witness then.
"I called him to claim a repetition but I didn't know how to do it."
++ Here is how to do it:
'9.2.1
The game is drawn, upon a correct claim by a player having the move, when the same position for at least the third time (not necessarily by a repetition of moves):
9.2.1.1
is about to appear, if he first indicate his move by writing on the paper scoresheet or entering move on the electronic scoresheet, which cannot be changed, on his scoresheet and declares to the arbiter his intention to make this move, or
9.2.1.2
has just appeared, and the player claiming the draw has the move.
9.2.2
Positions are considered the same if and only if the same player has the move, pieces of the same kind and colour occupy the same squares and the possible moves of all the pieces of both players are the same. Thus positions are not the same if:
9.2.2.1
at the start of the sequence a pawn could have been captured en passant
9.2.2.2
a king had castling rights with a rook that has not been moved, but forfeited these after moving. The castling rights are lost only after the king or rook is moved.'
https://handbook.fide.com/chapter/E012018
"1st attempt: I claimed a repetition. But it was in my opponents turn, so it was turned down. The arbiter explained that I had to make the claim in my turn." ++ Yes, that is right, see 9.2.1
"2nd attempt: I claimed the repetition in my turn, but it was the turn after the repetition, so the arbiter explained that it was too late." ++ That depends: see 9.2.1.2
3rd attempt: We reached a repetition but my clock flagged so I lost ++ Flagg precedes a claim
Right after the loss, my opponent came to be and told me: "I think it was a repetition actually" ++ Fair enough
"What do you think of this?"
++ You should have called the arbiter to witness a repetition.
You should have claimed the repetition having the move.
Today I played my first OTB tournament in some time. The time control was fast, so the arbiter said that flagging was allowed.
The issue came when we reached a Q+P v Q+P endgame. I was just kind of repeatedly checking his king for a draw. I had like 10 seconds on the clock. We repeated several positions multiple (more than 3) times.
He absolutely denied it even though I'm 100% sure we repeated not 1, but several positions multiple times.
The arbiter was watching everything that was happening. I called him to claim a repetition but I didn't know how to do it.
1st attempt: I claimed a repetition. But it was in my opponents turn, so it was turned down. The arbiter explained that I had to make the claim in my turn.
2nd attempt: I claimed the repetition in my turn, but it was the turn after the repetition, so the arbiter explained that it was too late.
3rd attempt: We reached a repetition but my clock flagged so I lost
Right after the loss, my opponent came to be and told me: "I think it was a repetition actually"
What do you think of this? It must also be said that both the arbiter and my opponent have a history of being kind of "rude".