Bad service from Vumatel fibre

I bought a house from a deceased estate.The previous deceased owner was from Austria so him family still stay there.Now when i moved in i started to begin my garden and realised that the wires are in the garden and under my grass and a water drain pipe was broken and the wires put in it,and it was not even five(5) cetimeters under ground.I contacted Vumatel and they send a person with the name Anton out,he took pictures and said it was not done right and he will send out people to come and do it over again and that was on the 19 of August.I phoned him on the third(3) of September and he told me they have forgot about it .He then made a arrangement for fifth (5) Saturday and waited but nobody showed up or not even phoned me to tell me.I phoned this Anton dude several times but he did not answer his phone and i even send him messages but no reply from him.I then phoned the office and was told that the issue was resolved and closed on the seventien(17) of August although this Anton was two dyas later here and sqid it is not installed correctly.So my qeustion was how can it be resolved and closed TWO DAYS BEFORE someone was here and took PICTURES and said he will send people out TO COME AND REPAIR IT.The lady i spoke to became then arrogant and did not want to listen to what i say and that a appointment was for the day the fifth(5)September on the same day i am calling.I think that this is not how things which you are paying for is handled and then say they forgot about it ,and then dont have the guts to answer your calls.