Sprint phone bill, and they are NOT my service provider

Archived from groups: alt.cellular.sprintpcs (More info?)

Sprint is trying to charge me for two international long distance
calls made from my home number last year. I've never had Sprint as a
long distance carrier, and have never approved any type of service
from them. I've indicated to them that it must be a mistake since I've
never had their services, but they basically said that their records
show the calls were made, the payment is due and basically it's my
responsibility.

Can they do this!?!
My concern is that these charges could potentially hurt my credit if I
choose to ignore them?

I don't even use my house phone for long distance since I have an good
deal through my cellular service provider (Verizon). :]

Any advice would be greatly appreciated.

Thanks in advance.