Non completion of job

<p>I was struggling with wifi at home and asked my service provider BSIT to come around and advise me on a better solution. They advised that I should install an additional Unifi accees point to the two I already had in place. Firstly they send 2 technicians who did not know what they were doing. Eventually another technician came out but also could not get the new Unifi to work. As it was getting late he needed to go home and promised to come back the next day. 2 weeks later nobody has pitched up and in addition I received an invoice for the Unifi and for the work done. I refused to pay for the invoice and to their credit they did reverse the invoice. However, I am back to where I was 2 weeks ago with weak wifi signal. Just go to another service provider? My problem is that there is no other service provider in my area other than the cell phone companies who way overcharge for their services.</p>