Poor service

I had a long standing contract with vodacom and made sure that my premium is paid every month with no unpaid, I decided to cancel my contract with them and pay the total outstanding balance as per the figure they provided me with. I sent them my proof of payment with cancelation signed document together with my ID copy on the 7th on May 2025. My debit did not run in May, June and July 2025, to my surprise I get an email saying I owe them money, I called just to get clarity and the lady.i spoke to says they did not get my cancelation document, I re-send them which was a struggle for her to receive was in a call for 1hour to make sure they receive the document. She confirmed after that struggling that she received them, come August they debit me R3200 when I call and ask they say I owe them account was in Legal when I ask how becouseci paid off my account the lady gave me a story I did not understand she told my my debit reversed i had my statement open no unpaid from vodacom, then I asked why did I not receive calls that my account was in arrears she said they could not get to my number, I asked about my alternative number provided she could not respond. I asked for complains number or emai she told me they escalated my query will get a call in 2 hours no one called me. Poor service from vodacom I will never recommend anyone to them 😢 😔 😞