Also, their rewards program is a scam
Why do you say their rewards program is a scam?
It was a good service until they started lying about paying just six satoshis to immediately confirm transactions. Also, their rewards program is a scam and customer service is non-existent. Stay away!
When you buy a gift card now it still says that you can pay six satoshis to immediately confirm transactions. Then after you pay it says:
"NOTE:
The transaction you sent is spending an unconfirmed transaction consider paying a higher fee if creating many transactions.
This means that we need to wait for one on-chain confirmation for this order. To speed up your order spend all your wallet funds and send funds to yourself with a high fee for faster confirmation."
Obviously this was written by someone who doesn't understand English or possibly they are trying to accuse customers of double spending. Anyway, I'm not creating many transactions... only one.
When you buy a gift card now it still says that you can pay six satoshis to immediately confirm transactions. Then after you pay it says:
"NOTE:
The transaction you sent is spending an unconfirmed transaction consider paying a higher fee if creating many transactions.
This means that we need to wait for one on-chain confirmation for this order. To speed up your order spend all your wallet funds and send funds to yourself with a high fee for faster confirmation."
Obviously this was written by someone who doesn't understand English or possibly they are trying to accuse customers of double spending. Anyway, I'm not creating many transactions... only one.
the bold statement suggests you were spending an input with an unconfirmed parent. were you?
if that is the case, i'm not surprised they required confirmation since it makes confirmation unpredictable.
the same thing happened to me when i paid 7 sat/byte but opted into RBF. because i paid with an RBF transaction, bitrefill didn't allow for instant processing. the same rationale apparently applies to transactions with unconfirmed parents.
this is inconvenient compared to their normal process but it certainly isn't a scam.
Looking from different perspective, they don't mention about relation between RBF / CPFP and 0-conf whether on payment or FAQ page.
It'd be better if they explicitly mention whether they accept 0-conf if the transaction have RBF flag or uses CPFP.