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. I paid 24 satoshis and it still said the same thing! I have been waiting for my gift card all day and customer service is never around. Stay away!
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 require confirmation. the same thing happened to me when i paid 7 sat/byte and opted into RBF. because it was RBF, they didn't allow for instant processing. i assume the same rationale applies to transactions with unconfirmed parents.