Discovery Vitality and poor customer service and relationship management

I discovered at 17:45 on the 4th October whilst trying to access my gym that my membership via Discovery Vitality was cancelled. I have not been able to find out why from Discovery themselves and what is being done to remedy the situation. This is the 2nd occurrence in a year that Vitality has disrupted 1 of my reward benefits that has never been fully explained to me. There has been no pre notifications regarding any technical or administrative issues. Certainly I have never had any payment issues as this is managed by a debit order. There is no way that I would entrust Discovery to oversee my finances through the recently launched digital bank.