I need to send some bitcoins, but Im not sure how long I must wait. I thought it was safe when the first two transactions disappeared, but that wasnt the case. Based on what happened before, Im assuming if I try again, the same thing will happen, since there is still an unconfirmed transaction. So how long should I wait before I try again? When will the double spend transactions disappear from my wallet?
Only blockchain.info knows. I suggest you contact their support and ask.
I suggest you move to proper wallet software like Bitcoin Core. It may be burdensome considering synchronizing and hardware use, but at least you can be sure that transactions are working 100% as intended. Normally 2 days wait time should lead to automatic reappearance of transactions with insufficient fees. Blockchain.info seems to be mixing things up here.
Thanks for your reply. blockchain.info support is completely useless. They respond with a canned reply or just close the request with no reply. blockchain.info definitely has a broken / useless dynamic fee calculator, but I wonder if they also caused the transactions to be resent, with updated date / time. The transactions I originally submitted are gone without a trace. I'm wondering when these unconfirmed transactions will disappear and my balance will return to what it should be.
Here are the transactions:
https://blockchain.info/tx/a0bd66251f493cef265f8ce49fa01d4cd8f9a7de81f631e9e37922210cd609b7 Submitted May 16, 12 am.
https://blockchain.info/tx/b8fc182903156748f4c7d8c3b84223df911827856917cd5662550e9a98ecd53a Submitted May 18, 9 pm.
https://blockchain.info/tx/e3af8478620fa2033bda1e6c7dc45ff871aa5ee285cece79f02a060ca367b742 Submitted May 20, 8:46 am.
I've never considered using another wallet because I didn't want to deal with backup, but this situation makes me consider it. Where is the best place to find out about using bitcoin core?