Unfair Waiting Period Imposed on Loyal Customer

Due to financial difficulties the policy I was on wirh fedhealth lapsed without my immediate knowledge. I called the call centre to rejoin fedhealth WITHIN the 90 day period. Even though I rejoined in time they have still imposed a 90 day waiting period. When I asked the call centre agent who was not very helpful he said it was because I told him I was taking antidepressants. This is utter BS, I have been taking antidepressants for years now and was prescribed them while covered by Fedhealth. Please could someone sort this out. I was also told my son would be waitlisted too because he has adhd. I have never claimed for any of these medications from fedhealth as I am only on a hospital plan. Please can someone competent call me and help me resolve this mess. I have always enjoyed good service from Fedhealth and reccomended them but I am currently very dissapointed.