CANCELLED BUT THEY WONT FETCH IT!!!!

Rain Rain Rain.... I have cancelled my services with them on the 7th of April. They assured me that i will not be debited and that they would send someone to pick the router up. I called a second time and was told that i would be debited for the 7 days that i used the wifi in April and that the router would be collected at the end of April. I am still sitting with their router and was debited more than half of my package value... at this point I'm not even going to argue about the amount billed i just want the router collected from my residence because i have a feeling they are going to debit me as long as it is in my possession. Worst customer service i have ever experienced.