Satisfactory customer service

I wrote a complaint about Netstar on the 26/11/25, I was contacted the next day, I explained them I'm at work and that they should call me at 10am or 1pm. They never got back to me, when I followed up the same afternoon I was put on hold for 15min then the line went quiet for a further 5min with no response. I deeply displeased with there satisfactory customer service.