I sent 0.6 bitcoin from my coinbase account to my blockchain account. The money doesn't show up in my blockchain account and shows as pending on my coinbase account with 0 confirmations. It has been about 2.5 hours. I'm a little worried because blockchain changes the wallet id for each transaction, and I never requested the money but just scanned the QR code from my iphone. Am I just being paranoid?
Miners fee was 0.00115, or about $5
What happens if it never gets confirmed or that address is no longer valid?