If you want to use "string" in data you need to replace : with =
//your code data:"tipo_tar=1&monto=" + "1000" + "&n_m=" + "100" + "&refe=" + "100" +"&usuario=" + "pcisneros01" + "&email=" + "[email protected]" , //your code or you can use a plane Object (i like this way):
//your code data:{ tipo_tar : 1, monto : 1000, n_m : 100, refe : 100, usuario : "pcisneros01", email : "[email protected]" }, //your code