Vodafone — billing discrepancies - charging for sms which was never sent

Address: Chennai, Tamil Nadu

Myself and my have been charged for sms which we never sent. When i raised the complaint in may 2019 with them, then only sent generic email stating that they have charged based on my usage only. I called the customer care executives and was informed that i have sent sms to one number which we never sent. They keep on sending the bills with the same number and i informed them through email and phone communications to end my contract and clarify the billing errors unless which i will not make my payments. I reached out to their appellate authority as well and finally in july he told me that if i use iphone, then when i change the sim it will automatically trigger an sms. They are telling me that they can't reverse the payment and asking me to change the headset. If this is the case, why this was informed to the consumers when we raise the concern in the month of may. They inform only in july and keep charging us. Also advising me to change the handset. I have been asking them to close my postpaid connections which they are not doing it either and keep on sending bills with incorrect amount and late fee. I need justice on this matter please