If you ever have a BTC confirmation issue that has been going on for days, do not despair...
Try to accelerate it for free with
https://www.viabtc.com/tools/txaccelerator/ or use a paid version by doing it yourself with pushtx.btc.com/#/ but there is a paid service for faster confirmation. I can help with that but it's not free but cheaper than most paid btc accelerators out there. If interested you can reach me or drop me a message and I will respond promptly.
P.S: it's a pay after service has been rendered and confirmation of your btc has been done.
For your paid version, are you just using ViaBTC as a customer? Or how are you getting it added? What miners do you work with, etc.? Need a bit more transparency on this part, especially if you want to charge for the service.