poor service

i made payment for a Wi-Fi since November but still no installation, they came to install on 28 November but they left with out installing, problem being the address was wrong they need to correct it at the office, since then even today they never came back, i tried to contact mweb customer care but i hold the phone forever, no answer. im using more 100 airtime to contact them everyday but no help. i lodged enquriery and compalin on they website still no help.i need to cancell it and look for other network coverage. i hate them