Bad service

I sent an email in December 2018 with all my documents for Altech netstar to update my profile as I had changed my surname. On 16 January 2020 My email was still ignored I ended up calling them to update this and Goodwill offered me his direct email address. I sent him an email but had no response, I followed up on 21 January 2020 and only then did he attend to my query. Because I had bought a new car and they had requested me to send them the permanent registration number as soon as I receive it when I requested them to reinstall the tracker in the new car that had a temporary number plate, I did so a few days later (21 Jan 19) as soon as I received my permanent number plate and sent the relevant document in order for my records to be updated accordingly . Today, the permanent registration is still written incorrectly and no action has been taken to resolves this. I even raised this query via the customer portal but there is no response. I don’t know how Netstar issues case numbers for queries but never attend to them for so long unless they close them without assisting.