Did you include a small transaction fee in the payment? Otherwise it can take hours to confirm.
Is that correct ?
I thought the transaction fee (or lack of it) can affect the speed of inclusion in a block (& 1st confirmation), but there are 4 confirms already so doesn't that mean it is already in a block and only time needed for rest of confirmations (barring a major failure of the Bitcoin protocol) - or am I misunderstanding it ?