in blockchain minimum transaction every send is now 20k satoshi
if you send bitcoin, and setting use low fee only 9k satoshi, i think is very long time to confirmation
Its 90k satoshi 0.0009 not 9k satoshi its a big different though.
Blockchain now have HD wallet so when you check address to receive bitcoin you will get different bitcoin address everytime but you can send bitcoin to any of those address and it will be added to My wallet balance. If you like to have specific bitcoin address to receive and send bitcoin from it, you need to import new bitcoin address.
OP had only problem from the transaction fee and not related about what you are talking about, I guess he knows already about the functions of HD wallet.
And to OP's issue I also experienced like this but different wallet service, and not that high. The most annoying there is its only transaction fee but almost got 1mbtc. In my part I sent .001 but the fee is 0.0005.