hi, I returned an item of jewellery and I meant to send it by tracked mail - but the post office was in chaos that day due to covid and totally forgot - anyway it sent second class large letter - the item was £80. the seller said he did not receive it and the only proof I have that I sent it is the counter receipt - the machine wasn't working so I didn't even get proof of posting just the receipt which says the post office details and that it went second class - is there anything I can do? I paid by paypal.
thank you
