oh that is utter rubbish. I'm sorry they were useless. I can't believe they didn't send you the email about the contact details, it's auto generated so probably a glitch but really crappy to do that.
I hope she leaves you alone - it's in her interests to have it back sooner so she can get on with selling the blasted thing again. But she doesn't sound very bright.
Giving a recalcitrant seller that long to do nothing before they let you return it seems quite farcical. Occasionally a seller will give in and just say whatever, send it back, and then you have to be very careful that you have got the correct address (ie check with paypal and ebay that it's the one on their account, if you send it elsewhere you get no refund and sellers might tell you a false one).
I had a very long (about 4 weeks) battle with a furniture seller once who sold me a crap quality sofa, said it was real buffalo leather etc, well bits of it may have been but the rest was stapled on plastic. I asked to return it, he got really shirty and refused to pick it up, this went on for ages and eventually ebay started saying they would 'review' the case again and he got really scared they would find against him and refund me without my having to return it that he agreed to come and pick it up!
Their messages made no sense and they had implied I might get to keep it and the money, which of course I'd never have done, I'd have let him take it away - but it freaked him out!
So their having a poor grasp of English can work in your favour - it is completely random at times. Paypal are usually more predictable.