This was my very first auction on gunbroker. Before the auction closed I attempted to contact the seller twice for questions and never received a response. There was minimal bids up until the very last hour where there was only one bid made besides mine which was only one cent over mine and drove up the price by ridiculous amount. After I bid $25 over that bid, that bidder never did again. To me this is very plain evidence of someone's shell bidding with an alternate account to drive up the price of the item. I contacted customer service through the help desk because there is no phone number and they kept dancing around all of my questions,did not do a thorough investigation and did not take my concerns with serious intent. I notified them of the suspicions of show bidding and also notify them that I could not get a hold of the seller after I have won the auction, either through email or phone. I informed them that the seller only accepts live checks cashier's checks or money orders which is a very unsecure form of payment. They offer no guarantee only coverage for $500, but with a $100 deductible. This is almost criminal and everyone knows that firearms are well beyond this range in price. The item I was putting on was at 560 all of a sudden it's at 820 because of one bidder my winning bid was 825 and they did not attempt to bid again. Very suspicious behavior with a bidder and a seller. I have yet to pay for the winning auction and I have not received a response from the seller. I will not further pursue any help from GunBroker help desk because I know it will be futile. I will not make any further purchases on GunBroker and I will notify everyone that I can of the website's poor behavior.