Hello,
According to viabtc you will get a transaction doesn't exist because of the following:
In the following cases, you may be told that your transaction does not exist:
1) Too low fee: We only provide accelerator services for those with at least 0.0001BTC/KB transaction fees;
2) Node reboot: When a Bitcoin node is rebooted, synchronization of transaction data may be delayed. You can try again later;
3) Previous transaction unconfirmed. Your transaction can’t be confirmed if previous transactions connecting to yours are unconfirmed. You’ll need to wait till all previous transactions are confirmed first. You can also use our accelerator to help with that.
We can’t accelerate confirmation of “Double spent” transactions either
I checked it but it seems like its not one of them so it's probably bacause of the dust in your transaction that's why viabtc doesn't work . Dust are really small sized outputs from a transaction . You can check it on blocktrail here:
https://www.blocktrail.com/BTC/tx/dfcab4527e981119e201d385f876febfc1fef34c806cafe6432ceee2b76e58fa .
If you're willing to pay use this service:
https://pushtx.btc.com/#/ . I checked your transaction it costs $7.05 which is really high .
Alternatively you can contact a miner like quickseller or macbook-air and offer a bounty of any amount (
decent amount)