Hi HCP,
Thanks very much for the rebroadcast it appears the transaction has now been confirmed! I did try to use the ViaBTC accelerator initially, but it told me the 'transaction did not exist' which is what caused me to grow concerned. I didn't realize that a small transaction could hold up the transaction behind it in that manner. It's ironic because I used that small transaction to ensure I had the correct wallet address prior to sending 0.5BTC to allow for a smooth transaction, but it appears that small transaction may have prevented both transaction confirmations!
I'm glad I asked because had you not intervened it looks like the transactions may have been stuck long term, causing me some major stress with Aug 1 approaching! Thanks again for your help, I'll have to figure out how to investigate and rebroadcast a transaction myself, so if I'm ever in the same situation I can rectify it.
Cheers