bad performance and customer communication,

My unit was fitted 12/2024, the first twee weeks everyday i was getting notifications low power / battery disconnect. the car track team phoned me an i told them i don't know why it is doing it. they shed they will send a technician to come and inspect, we made the arraignments for the technician to come out . and the technician never showed up. they phoned me again for the following week and the meeting was arranged for 14:30/15:00 the technician showed up at my house 13:00 with out contacting me, so the vehicle was not available and he did not want to wait. so we set a new date the following week, the technician come out and spend about +- 3 hrs testing the vehicle battery and connections, he found that the technician that installed the unit has connected the power wire on the brake lights that was giving a back feed to the unit, he rectified the problem and now the unit is working correctly. now sins January up till now everyday the accounts department keeps on phoning me about the repair money, the first time they phoned , the lady advised me that because the unit was not twee weeks old the repairs will go to warranty and it is not my mistake the unit was fitted incorrectly. yet everyday a new person keeps on phoning me with the same story i must pay........ i am fed up with these people.... the communication in the accounts department is poor no one knows how to fix this problem and no one is listening . how can the customer be responsible if the technician did not fit the unit correctly.

this is my last resort to sort this out they keep on phoning me everyday some understand and some just don't. I've logged complaints they phone back and tell me they will note this on there side to remove it from the system and yet someone ells phones me again. I'm done with the people,

o yes and don't even try to email accounts department they don't get back to you, even when they send you an email and you reply they don,t reply back.