Collection fee charges

I’ve received very poor service from this company,first I app**** for fibre last December and was advised there’s no coverage in my area,to my surprise in March I started receiving WhatsApp texts that the router is on the way and was delivered,a technician was sent and still found there’s no coverage,I told the technician that I was surprised as to why I received the router cos I was told I don’t have coverage,I called Mweb and they collected the router now I’m told I’m liable to pay for collection,why? I don’t understand I spoke to Noma from collections who was very rude and never tried assisting and transferred me to Mbali who was also not will to assist nor allowed me to explain. This is bad service why am I being charged for something I never requested for?my credit is ruined by something I never asked for