I tried using my land line phone and hitting "Call with Code", and it worked fine. A verbal recording called my land line and gave me a 4 digit access code to enter on my computer to unlock my account. Thanks to all for the suggestion. After logging in, I went to my Settings page, found my land line number, listed as my "Primary Mobile", and I hit "Change" to uncheck the two preference boxes that 1) allow Robocalls from PayPal and 2) allow Texting from PayPal. Then, I hit the "Done" bar at the bottom to save the changes. Unchecking these is necessary to keep PayPal from discovering that the number is not a mobile number.
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