Anyone missing a TFT game record?

I played a TFT game last night around 8pm AEST which I believe it was a ranked game. (Trying to reach Plat4, so been playing only ranked TFTs recently) I was really lucky and got 2 PONs built 6 assassin deck and came first place. However, I did not any ranked points from this game, so I have submitted a ticket to riot support team. They replied me back that they have no record of me playing ranked game nor coming first in any game. I have no clue on what game I have played last night then.... Anyone experienced similar?
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