Now they refunded the failed withdrawal, I proceeded with another one, and also this one shows as "COMPLETE" with txid, but the txid is not present on the explorer.
I have had several mishaps with CLAMs on Poloniex in the past, but this time is starting to get ridiculous... And yes, replies from the customer care team are void of useful information.
I've also experienced it like you, and I don't understand what really happened, I sent a ticket to their team but there was no reply at all maybe someone can help me here
This is going to happen almost every time... it's a full time job dealing with Poloniex.
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