I ordered a replacement screen for a rare phone via PayPal direct checkout. I didn't hear anything from them after that.
After a month I contacted cellspare via PayPal conflict resolution and they gave me a USPS tracking number even though I live in Europe and they claim to deliver via DHL. The tracking number didn't have any activity for two weeks.
Finally I filed a complaint with PayPal and they eventually (after another month) resolved the issue in my favor and refunded the money. There was no further communication with cellspare after I received the tracking number, which means nothing happened for about 1.5 months!