Bad service / telecoms-solution

Paid R3500 up front for buying & installation of the Wi-fi equipment. And R1000 for the monthly pay ment for the signal. The provider assured me of good signal in my area. (From my dish to the tower. It was very difficult to get a fix date for installation . First the 25/1 and then the 31/1.It was telefonies & per message difficult to get hold of him. The morning of installation the provider could not provide me with a signal. The question was: refund or other options. We tried other options. He suggested Lte. My question was: The price. The same. So I ask when will he bring the lte. He couldn't bring it the 1st but the 2nd. He said that he will come and drop rhe equipment that I bought off. That was when I exploded. I said to him that the equipment +installation +signal was part of the contract. What must I do with the equipment? So I asked him to refund me the Total of R4499 because I could get a better provider elsewhere. He questioned me about that. I just want my money, I said. Today is the 4th of February, and nothing. No installation, no signal, no service. NOTHING. I want my money back. Ivm furious. What must I do. He has my money and I have nothing.