Virgin Active debit order system failure

They did not notify me beforehand that the debit order date was moved a day earlier this month (which they usually do), so the debit order failed, but they did not notify me. I only found out about the arrears because my app didn't work, and I had to call them.

Apparently their system is sophisticated enough to completely revoke your access from the gym from day 1 of missing the payment, but not sophisticated enough to send an SMS to notify you beforehand. I would gladly have fixed the non-payment if they had just notified me. Surely its more civil to let a customer know of an issue before blocking their access to the gym?? Have spoken to customer service, and they still don't see the flaw in their system.