A day late and a dollar short

A day late and a dollar short. Customer Service is shocking. Ordered an ADSL via LTE service from VOX Telecom late in September and impressed on them how important it was to get the service a.s.a.p. as we run a business from our home. They promised beginning October and kept telling me the service had been booked for shipping to us on 1st October. They eventually actually only shipped on the 5th after repeated phone calls to them. Turns out the service manager had misread my e-mail and only shipped the simcard. The service had to include an LTE router and they finally arranged for me to borrow one from one of their technicians which I then only got on the 7th. Once that was installed the service quality was so poor that it often took 10 minutes to download an e-mail of 300 Kbs. That went on till the 15th when the service improved during the mornings but afternoons and evenings was terrible. Some evenings no service at all. When logging a ticket it takes 24 hours before a reply. Service is still up and down and very erratic. I can't even send them an e-mail any more as their server is down and their manager doesn't respond to WhatsApp messages any more.