Hello, I recently ordered the Behringer KT108 keyboard amp from musician's friend. After inspecting the amp, I discovered that the part that plugs into the wall outlet looks like nothing I have ever seen before. This "plug-in" will not fit into a USA wall outlet. I have attached an image so you can see exactly what I am talking about. I am very disappointed because I was hoping to use this amp right away. What can be done to fix this issue? Please help. Thanks.