Hi,
I have struck in unconfirmed bitcoin transactions more than 21 hours. I used regular fees in blockchain.com. If anyone could help me,what should I do to speed up my transaction?
For the second transaction, (c4d334244395d650b49a2b7fe1975547903cf18bb360c90c5733aea04b927c69), do you own the address 1FspD? If you do, you can try CPFP to try to entice the miners to accept your transaction. If not, then you can't do both RBF and CPFP.
Is it possible to complete this transactions using accelerator service?.
Yes. Just accelerate the transaction above and the accelerator will calculate the fees to accelerate both transactions since the prior transaction has to be confirmed before your transaction above can.