My question is,
- if i wait, how long i should wait ? Because i send this to pay for my purchase at local shop.
- when i brpadcast, it says "transaction already exists", tried on both.
- How do i did this ?
To answer your questions:
- it can take several days before the network starts to forget your transaction. If you rebroadcast it, a forgotten transaction will be known to the network again, so the waiting re-starts from that point
- as long as the node has your transaction in memory, there is not need to re-broadcast. Some re-broadcasting sites will probably show this warning if you try to rebroadcast a tx they still have in their mempool
- PM quickseller or macbook-air on this forum. I'm pretty sure they'll ask for a reward tough, but there is no harm in informing yourself