MTN home router

On the 3rd of June 2025 i ordered a home router for me and my family online with MTN I had to pay an upfront fee of R1056 which they said it will cover 2 months June and July.. I've been waiting for that router till today and just yesterday the 4th of July 2025 they sent an invoice stating I'm somehow going to pay R1056 for July i mean what's that now..