LocalMonero vendor stopped responding after I sent BTC

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It's been 30 mins am I fucked? He has 491 positive reviews (100%) as recent as yesterday. When should I start a dispute?

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Mining:
Bitcoin, Cryptotab browser - Pi Network cloud PHONE MINING
Fone, cloud PHONE MINING cod. dhvd1dkx - Mintme, PC PHONE MINING

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Exchanges:
Coinbase.com - Stex.com - Probit.com

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Donations:
Done crypto