Discovery App /Maternity benefits confusion

I am unhappy with the way my case is being handled i called in to discuss my maternity benefits and i was told i never activated the pregnancy on their app of which i had done so.I spoke to a consultant on the 18th of June and she did confirm she could see that but till today nothing has been resolved.They keep asking me to send screenshots of the activation i sent it bt they say they cant see activation date i also dont knw how their app works .The person i spoke to was going to talk to IT and see how this was not showing and was going to ask a manager to refund me money owed to my savings as they were not deducting from my maternity benefit.I am frustrated and i need this resolved asp.