Defective tracking device not being repaired

On the 24th of Feb I upgraded from Netstar Basic to Netstar Plus. On the 25th I downloaded the Netstar App but I could only view one out of the two cars. To date I can only view the Datsun Go+ and cannot see the Toyota Hilux. On the 25th of Feb I logged a call with Ref no.: CAS-***-Q6K7 and I was told that a repair has been booked for the unit with the Polokwane office for the Hilux but nothing has been done to date. 15th Mar 2021 I enquired on mail and I received a ref no.: CAS-***-V2D9 the following day. 17th Mar 2021 I received a mail stating escalation of my query to the relevant department with a ref no.:CAS-***-M9L5, but still a no info nor action a month later. I also do not know long has this this unit has not been working before it was picked up and my car has been on high risk since then.