About Shopify payment, Paypal phone number disclosure

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Hello,

I am running a small business and just setting up my shopify payment

There is an option in "customer billing statement" to enter the phone number of the business. I don't have any business phone number but using only my personal mobile number instead.

Question 1)

As I don't want to disclose my personal number on bank statement, is it a MUST to have the phone number shown on the statement?

Question2)

And I am setting up Paypal thru Shopify too, and again Paypal need me to enter phone number, but I don't know would the information show up somewhere in their invoice, website or anywhere? 

Any ideas? could anyone clarify?

Many thanks!

tb