Postage Question

I had a buyer purchase tonight and paid straight away. When I went to check the order details I noticed she had paid for express postage. When I looked at her address, I noticed she lives in the next town. Anything I've ever posted there arrives overnight. I sent her a message pointing out that standard mail usually arrives overnight. I'm not in the express network so it's a minimum of 2 days from here. I asked if she wanted me to post it regular mail and me refund the difference, or whether she would prefer just to have it sent express regardless.

 

What I'm wondering is, if I don't hear back from her by the time I go to post, should I still post express, or should I just post standard and refund the difference? I'm just concerned that express might still take 2 days, even though it's to a neighbouring town. I'm not sure how express works in that situation. Does it go to the city, then get sorted and sent back, as opposed to regular mail just going by truck overnight from here?