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You shouldn't expect them or any other service based on the EU to follow a different set of rules/regulations (Flyp.me = HolyTransaction):
If a Client, a Client Swap, a Client’s Transaction Request or a Transaction is flagged as suspicious through HolyTransaction’s internal controls, HolyTransaction will require additional proof of identification from the Client and has the right to decline any Transaction Request until additional and verifiable proof of identity is received and the compliance officer has approved the Client Transaction Request.
What about TronWallet API for their coin swap feature?
I'm not familiar with their API, but if you want your transactions to be "fast" then you'll have to use large exchanges (like the ones we suggested above).