Inclution of my baby to my existing policy.

Sir, I took a policy of Sat Health & Allied Insurance Co. which is Family Health Optima Floater plan. Unique Identification No. IRDAI/HLT/SHAI/P-H/V.III/129/2017-18. Under the said policy terms it is staited that new born baby will automatically be included on giving intimation under the existing policy. early 2017, 30th june , my wife gave birth a baby boy, unfortunately he has hydroneohrosis problem by born. According to policy terms I intimate the fact with all papers related to birth to the company support sail through my personal email. unfortunately they reject the inclusion process without stating proper reason. After that I wnt through the policy paper especially the exclusion part , I have found that external congenital anomaly are being excluded from the coverage but in the case of my son that is hydroneohrosis is a internal congenital anomaly. Could any one suggest me based on IRDAI/HLT/SHAI/P-H/V.III/129/2017-18 rules and the upper said fact that whether my son is able to avail the coverage. if he is eligible then what to do next? if he is not then in which ground he is not eligible