I'm very tired so maybe I'm not thinking this through properly
A pro seller is selling a lot of small craft bits, all free postage. I'm interested in maybe 5 things so wrote to ask if she'll combine postage. She wrote back to say postage is free and that I could pay extra for 1st class if I wanted.
I don't want to hassle her but surely postage is not actually free and surely she knows what I meant? Should I write back or forget it? She's the only person selling one of the things I wanted.