Vodacom Poor service and their Agent

On Vodacom I bought iphone couple of months ago and the December 2024 ,the debit order did not went on and they told me it's my bank who should know why did not went on ,says the angry Agent are not willing to help and I asked did you send me some notification stating you try to do debit order and they claim they did send me an sms ,fast forward I end up.in areares which I manage to update my account ,i still my concern in December 2025 they did not deduct as well and they have my email ,my contact and no sms ,they just quiet when yiu call them ,they send you pillar to post and my worry if affect ITC and they have a poor srbice and I can't wait to finish paying their phone and I would suggest to think twice by doing business with them and they can't say there was no.money in my bank it always there and all other debit order went off and I bought a car in 2020 I never skip any payment until today but small money Vodacom suppose to deduct they can't and i don't who breachnthe contact here. Unsatsified customer.