Thornton Park Chocolate Labradors

We got a puppy from Thornton from Sibelius and Ruby's litter. At 3 years old she started having seizures and was diagnosed with Idiopathic Epilepsy and Food & Environmental allergies. After her first seizure we contacted Margo who said she is not aware of any similar issues (Epilepsy can be genetic so we were seeking information for a diagnosis). We have since been in contact with 3 owners of our pups direct brothers. All of which experience allergies. 1 has also been diagnosed with Addison's Disease and another has now experience 5 seizures and is being assessed for Epilepsy. We received written evidence that Margo was made aware of our pup's brother's seizure prior to us contacting her. Meaning she withheld important information regarding our pups health that could have assisted with a diagnosis and reduced a very costly exercise. We have contacted her to address the withholding information and are yet to receive a response.