I contacted the seller about a charging handle, stating I'd take it if it wasn't spoken for. He replied "$85 and it's yours". I told him to give me 5 minutes (to send it via cash app per his request). I sent the funds & followed up with a PM moments later to let him know it had been sent. He then replied that he had refunded the $, that someone else had sent money before me. In a PM exchange, he admitted that he had several 'buyers', "in case someone backed out". When I challenged him, he was snide and rude, suggesting that "it's just business" with a reference to a used car dealer. When I replied that it wasn't the way business was done on ODT, or anywhere else in normal circumstances, he said "then leave me negative feedback and go cry". Worst experience (and one of the very few negative ones) on ODT since I've been here.