I would contact pay pal if that is who you payed through. As far as fixing it ( I am a welder by trade) I dont know if you have ever done any brazing on cast iron before but you will need to heat everything up at an even temp. Dont jut try brazing it! It will just make it worse. If you dont have to proper tools to pre heat it the way it needs to be done I would take it too someone who can. Thats my two cents. I would try and get my money back first before trying repairs though.