It's blockchain.com now not blockchian.info anymore
1. Is there another way to get access to my wallet rather than waiting 2 weeks?
Since you do not have the 12 word pass pharse then that's all you can do at the moment.
2. Should I try logging in now with my wallet I’d? Or would this ‘reset’ the 2 week timer since I have a feeling it will ask me to authorize this login attempt.
Not sure about the time reset.
I advise you to wait for the time.
Just to add to the first question: do I have to decrypt my back up wallet which is in AES.json format to retrieve my seed ?
May be someone else can enlighten you here. I really have limited knowledge here.