www.viabtc.com
 
 https://www.viabtc.com/tools/txaccelerator/              

 
ViaBTC’s Transaction Accelerator is a FREE service for the community. We also provide manual accelerator service for special cases (dire urgency, extremely low transaction fee etc.) and require a donation of 0.01BTC for each transaction. Please contact support@viabtc.com for details.