Purchased a Verimark Genesis Megasteam iron from Game Pavilion

Purchased a Verimark Genesis Megasteam iron from Game Pavilion. The iron has been problematic and stopped working several times with the unit being replaced in the process. The iron is now causing our lights to trip. The verimark manager at the store indicated that it was a plug, not covered covered under the warranty, but could not confirm how he tested this. He was unable to confirm in writing that the warranty would be in place if I changed the plug as instructed. He initially indicated that he would send the iron to his repair centre to check it. After indicating that I would change the plug to check whether it worked and asked about the warranty, he indicated that he already sent the iron to the repair centre and that it could take up to 21 days for repair.