Thanks Jannn. No luck so far, txaccelerator says submissions beyond limit. I'll periodically retry.
If you still have some output from these transaction in your wallet then try sending it with high fees like 500 satoshi per byte.Miners will confirm all your transaction if you spend output from these transaction with high fees.
fkvidar, can you elaborate or point me to a document? My wallet currently shows 0.00 and an unconfirmed amount since i tried to rebuild my multibit wallet.