Did they change the rules on their accelerator service?
The last time I looked, they refused to accelerate transactions that paid less than 10 satoshis per byte?
They didn't.
You still can't submit transactions with a fee bellow 10 sat/byte. In this case, ConfirmTX.com is also free for transactions with a size of up to 500 bytes.
If you sign up to their service the limit is removed. Oh yeah... You also have to sign up...
Don't you need a cloud mining contract to have the limit removed?