Incorrect plan and 2 trackers fit on 1 vehicle

I have had endless problems with car track I took out a contract with them on the 02/11/21 of which a technician was supposed to come out and didn't when I called the next day I was told it was because I didn't approve the mandate of which I didn't receive to this day and when I called my bank they advised it was because cartrack never sent a mandate Eventually on the 09/11/21 after calling and complaining a appointment was set for the 10th to have a technician come out and at 8am on the 10th a technician was there did fitment and the afternoon I received a call from cartrack advising that the technician couldn't make it and needed to reschedule for the next day and on the call I asked the consultant how many technician are supposed to come out and she said 1 and then I asked ok but didn't a technician come out today she said no, the next day a different guy came out and also did the installation of which I told him that there was another technician that came out the day before after he left I call car track and advised that they sent out 2 technician to fit one vehicle they said no they sent 2 technician to fit 2 vehicles of which I explained to them that it's the same car it's 1 car not 2 and the said they would sort it out of which I was debited 2 amount on the 13th which is not my debit order date and is also not the price for the plan I chose I need this issue resolved