Hi there Djackson95,
Welcome to the Community!
If you are trying to confirm a number through your PayPal account, this consists of an automated telephone call to a landline phone number. This process doesn't work at this time with a mobile number.
Please try completing this process if possible while you are at home using a landline telephone and it should work without any issues for you.
Please let me know if you need anything else in furture.
David.
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