Are you sure that the message is genuine and actually from 48?
What sort of message was it (phone notification, text message, email, WhatsApp etc.) and what exactly did it say?
It's up to you to renew your membership either manually or using auto-renewal.
Just log into your account and make sure that you buy a new membership using one of these methods.
If you need to contact 48 support then see the links in my signature below.
