Netstar - poor poor service!

If I could give zero stars, I would!! My current Netstar tracker appears to be the cause of my battery being drained. Contacting them, their response was that this is very likely as it is an old tracker (fitted in 2019). Their suggestion is to upgrade with a new tracker. In the process we also realise they have the primary account holder incorrectly as my husband, which the lady then (apparantly) changes, by contacting my husband and getting the necessary authorisation. All of this happens on 21 January 2021. They require 2 -3 days for the fitment to be done. I have now made contact numerous times, Day 11 and Netstar has still not been in contact with me. Phoning them again, they still have my husband as primary contact and again want to talk to him for the necessary authorisation. They send a contract through - again in the wrong name. If this the level of competence and urgency - how will they respond in a true emergency? A last question, of the current tracker is faulty which is still under contract, why should a sign on for another 3 years with a company that does not provide service? Shouldn't they replace their faulty device??