Bought ds some clothes last week, they arrived and one item was a size smaller than stated. Emailed seller to check the right things had been sent and she refunded in full straight away. I emailed again saying I wanted to keep some stuff and was happy to pay half and return the too small item but have heard nothing. Should I keep the whole bundle, return it all, pay all/ some of the refunded money back to the seller or something else? I feel bad keeping the clothes without paying but seller isn't replying to me. I didn't ask for a refund btw.