UNCERTIFIED CUSTOMER

I phoned MRPmobile December 2019 on *** to cancel my contract end of January 2020 when my contract expired because i don't want to continue with it, and i was told to cancellation send email to ( ***) and i did do that twice, but when i phone now January 2020 to get feedback about my email request they ask me to send i get a confirmation of my email is not appearing on their system it seems like i didn't send the cancellation email to them, and i read the email address again to them to confirm if maybe i punch wrong email and they confirm the exact email address i send cancellation email to, and they ask me to send the email i send in December again, but still now they didn't get my email, and it seems like the email they gave me is not working. Today they deduct more money than i signed contract with them and i only use few of their airtime, so i really don't know what these people they want from me, and i am fed up with them now. Please if there is anyone of MRPmobile read this can help me with this problem and i am not interested anymore with the phone contract with them.