Worst service ever

October 21.2020 my contract simcards were approved and on the 26th October got my simcards and they were not activated so i sent an email to Helio for activation but no reply and i was givin 10days free trail and also an option to cancel with that 10days if I'm not happy with the network. So i did send email again to MTN directly requesting for cancelation of the simcards still got not respose, then come 2021 January 17th i got an email for my billing and send the email again asking them please cancel these simcards as i requested then again in February 17they send another billing and ask you guys again to cancel and luckily this time your customer service rep**** and even copied the legal department but i got no feedback or what so ever, today 13.03.2021 received an sms from Saya Recoveries that my account has been sent to them, that means you messing with my credit profile and credit score, can you just sort this thing again because i did send other email today to your legal department to sort this out... If it means i need to send emails every day in order for you guyz to clear my name and everything i will do so. The query/Enquiry no is ***