Fed up with Vuma Flycool

I am disgusted with Vuma/ flycools service, i activated my fibre line, my router didnt go on i contaced vuma they sent out two technicians, they came to my house, said i needed reinstallation they will escalate the matter and have one of their agents send me a qoute and it should be about +-700 they came to my house the friday they will send the qoute to my the very next day, that never happened i sent them numerouse emails asking for the qpute one of their agents told me that they sent it to me and that i should check my emails i did ans still nothing thos was a week later, the next day (saterday) i got the email with the qoute and it waz R1040 i forwarded the email to the lady i spoke to the friday and told that i want to cancle my service and i want a full refund, i am still waiting for my refund i have been sending them numerous emails, but get no response from them, please i need assistance with this matter.