public void onResponse(JsonObject o1)
 {
     try
     {
         FaspayPaymentChannelResponse r = JsonConvert.DeserializeObject <FaspayPaymentChannelResponse>(o1.ToString());
         if (mCallback != null)
         {
             mCallback.onGetPaymentChannel(r);
         }
     }
     catch (Exception e)
     {
         if (mCallback != null)
         {
             mCallback.onErrorGetPaymentChannel(e);
         }
     }
 }