He said "
Already confirmed", he usually say "
done" when he claims that he did it.
Also, it was mined by
Huobi based from blockchair's miner tag for the block where your transaction was included.
It's pretty much obvious that the one you paid was the one who "
accelerated" it since they are working with several pools as stated in the webpage.
Cooperating with several leading Bitcoin pools, we provide transaction accelerator service.
Yes i see. when i submitted to BTC DOM COM Accelerator. I see they write i can't track
About
The transaction accelerator, developed by BTC.com, is designed to speed up the transaction. As the congestion of bitcoin network and low service fee often lead to the delay of confirmation.
NOTICE: This service is not refundable as the acceleration is non-retractable.
Before placing an order, please refer tp Current best transaction fees , and then set appropriate tx fee to enjoy the normal bitcoin network confirmation.
And later i submitted that threat so i think they did it.