Unauthorised Somu Elite Mobile debits on account

I recently contacted Elite Mobile after noticing unauthorised debits on my bank account. I actually found their contact details on this platform after searching the net for the word Somu. They undertook to call me back in three working days. To date they haven't, not even after I sent a mail to their support@elitemobile email address. I long cancelled a telesales with them but they have been debiting my bank account without my consent for benefits that I have never used. I demanded a refund and to date I have not had even an acknowledgement from Elite Mobile to say that they are looking into my matter.