I do not understand why you need a text every time you log in, do you not have a short cut on whatever device you use. Mine takes me straight to ebay, and I have short cuts for several different pages. I also do not know why you need a code for sold items, I have never heard of this but it might be related to your log in problem.
Getting paid should also not be difficult, money goes to ebay and is released to your account within 24 hour. You do have to withdraw to your bank account though, but money arrives very fast.
Although ebay claim it is free to list and sell, using promotions is supposed to make your listings more visible. You do not have to accept the recommended rate, sales had virtually fallen off a cliff so I reluctantly use a 5% rate, ebay respond with “A higher rate will get more visitors”, so Free listings is pretty well meaningless.