Tenants not paying gas bill.

[Lana Lee]

I am participating in Landlord Cooperations Program in Philadelphia provided by PGW- gas company. Just received an email from them notifying me that they are going to shut of the service in 10 days and they might need me to "provide the access to the property, if my tenants wouldn't cooperate." How do I go about it ?

Do I write to tenants and demand that they pay their bill? Do I wait and see what happens? If the tenants refuse to open the door for PGW workers on the day of scheduled shut of, do I have the right to open the door for them and let them in? The rent is paid always. 

Thank you for your suggestions.