Multiple seller refund option

Dear Shokinro,
When the store is collection the payments, is there an option for the multiple seller to make refunds in front or back office?
How does this work? I see add payment, I see the credit option, ...
But I cannot seem to find out how to do the actual refund?
I'm also wondering if there is a coupon option for the multiple seller? (in stead of a refund)
Thanks a lot again!
When the store is collection the payments, is there an option for the multiple seller to make refunds in front or back office?
How does this work? I see add payment, I see the credit option, ...
But I cannot seem to find out how to do the actual refund?
I'm also wondering if there is a coupon option for the multiple seller? (in stead of a refund)
Thanks a lot again!