I'm sure you are trying to send piggies which is an ETH token to a PIGGYCOIN which is not an ETH token. Obviously, you will not able to do it ever as they are different coin.
The piggy you have should be from this Piggies - Charitable - Potentially profitable - Everybody wins while the address you get from exchange is PIGGY from this thread [ANN] New Piggycoin [PIGGY] | 3% interest | Web PiggyBank | Android PiggyBank

Case closed