No delivery, no service, no communication - just took my money

Bought a battery from Justbuyonline on the 3 December, took a screenshot of the order, 15331. Reviewing my email the next day showed no confirmation of the order. Tried to login, would not accept my credentials, neither could I change my password. Tried phoning, twice, no answer. Sent email to admin, no answer. To date, 1 January 2025, have not received my order or any communication from the company.