Probably not a problem, as long as you remembered your postal code.
We city people know our posties have a "postal walk" that may cover only one or two codes. My own code covers two city blocks-- about 50 addresses. Many take part of a high rise apartment building.
So your RR is probably the code.
(As a side thought- is your municipality moving to city-like postal addresses for 911 purposes? When I was selling woodstoves, our installers used to get some wild instructions on how to find rural customers.)
However.
Do contact your seller and explain the problem. Ask that she add the RR# to the printed address by hand if necessary. It won't hurt and may help your postie.
And correct the address in Paypal as soon as possible.
