Kraken says the transaction was successful so they cannot do anything on there end...Coinbase says that the wallet address is not linked to my coinbase account...however this is not true as transaction #1 for $600 roughly went into my coinbase wallet...transaction #2 is still sitting on the block chain and is roughly $4,000 which is a lot for me.
then you need to address this to coinbase support
make sure you pointed out you are receiving the 2nd payment on the same (previous) receiving address
I suspect this is a 2-payment-in-1-txid issue, which sometime the 2nd not get picked up by the system
by any chance you are willing to tell us corresponding address and both transaction ids?