Netstar

Good Morning I have netstar from 2016 ...after 3 years the contract was supposed to be cancelled...they told me they put me on a monthly contract ..but didnt inform me...didn't phone...didnt sent any e mail...in January this year 2021 they start to sent me like n logbook...the logbook show my car stand at my house as from January..till now...but i am driving every day to my work in Mamelodi and back.....i phone them..but is was a big problem to get hold of them...they say my device need a upgrade...they will phone me back...never phone me ....i stop my debitorder...how can i pay for a service i dont get...they phone me and ask they didnt get they payment...i explain to them the problem...now they hand me over to hybird...some collecters....i also explain to them...but all they want is the money.....nobody phone my back...just sent a email i must pay...can somebody help me please...🤔