https://www.viabtc.com/tools/txaccelerator is currently offline.

https://cpfp.djbooth007.com/ says it would have to pay $250USD, but I still don't understand why I have to pay additional payment to get my hash confirmed. The sender sent it directly to me with high priority. It has nothing to do with a Child or Parent. I'm also using a coinbase custodian wallet address, so I can't even create a new raw transaction.