what was your actual termination date? Not when they notified you but the actual date?
A typical COBRA election timeline for the loss of group health coverage due to termination of employment is as follows:
Here's the timeline that must occur:
"Employment terminates and subsequently group plan coverage ceases.
Employer has 30 days from the loss of coverage to notify the plan administrator.*
Plan Administrator has 14 days to provide a COBRA election notice to the former employee/qualified beneficiary.
Qualified beneficiary has 60 days from the date of the notification to make an election to continue enrollment in the plan(s).
Qualified beneficiary has 45 days to pay the first premium."
If all of this happened in March 2018, you still are within the window to elect to continue. I am not seeing how you were irreparably harmed. Has it been 45 days from when you terminated?

