const result = await instance.adoptCreeptomas(
aquaQuantity,
firaQuantity,
aetherQuantity,
gaiaQuantity,
referrer,
{ from: accountAddress, value: ether(sendingEther) }

const data = await instance.adoptCreeptomas.call(
    aquaQuantity,
    firaQuantity,
    aetherQuantity,
    gaiaQuantity,
    referrer,
    { from: accountAddress, value: ether(sendingEther) }
  );