Back in mid January, I ordered a World Book Day costume from a seller in China. It still hasn't arrived and so I have opened a claim to ask them to cancel the order and issue me with a refund.
The seller has been pretty insistent that he wants to send me another costume but I don't want or need it now so I said no to this.
The seller has just emailed to say that he will only agree to issue a refund if I agree to repay him if it arrives. I strongly suspect that he has already sent a replacement that I said I didn't want.
Do I have to agree to this? Or can I refuse and ask for an unconditional refund?
Thanks