Ebay finally just transferred the money to my account yesterday.
Well, no. EBay allowed you to keep the phone, possibly if the seller said 'no returns' instead of 'no refunds'. For some reason, a lot of sellers don't understand the difference.
And if you purchased a phone sent through the Global Shipping Program, they don't want the phone back anyway. Although that usually applied to damage in transit rather than undescribed faults.
That's your legal position.
But ethically, I don't believe you should have both the phone and the money.
You should, in my opinion, return the faulty phone to the seller. Because the NAD case is resolved, you don't have to go to the expense of using a tracked or Delivery Confirmed service, although that may be all that Canada Post has to offer.
You should also mark the return as 'returned merchandise' or the seller would have to pay import fees if she is not in Canada.
Or donate it. Is there a group that provides appropriate clothing for impoverished job seekers in your community? Even a poorly performing phone could be a godsend to a woman trying to re-enter the job market.