Vodacom not taking their clients serious anymore

I'm very much disappointed with Vodacom.. May this review reach the relevant management and be resolved cos they are taking me from pillar to post.. On the 24 June 2024 at about 10:35 am I phoned vodacom to give them notice to cancel my contract that was ending on the 29 July 2024, they don't it is still debiting.. Again on the 05 August 2024 I requested premature contract cancelation of another contract, they send me documents to be signed and I did so and send them back with the proof of payment on the 20 August 2024 at about 06:37pm.. On the 26 August at about 12:08 I phoned and spoke ko Siphosihle and told me everything is been loaded and cancelation is in place, but till today nothing happened on my 2 contracts and debit order still going trough.. Please and please I become angry and can't take this anymore cos I'm no longer working and don't want to reverse the debit order as it's gonna give me bad name.. I ve been phoning Vodacom since but I'm not heard.. I'm 18 years with them but now I can see that they are chasing me away.. I have proof of everything please help.. From Lerato Setseta