Bad service shem

I have joined this Treatley product on 12th February 2026 and canceled this product with immediately effect on 13th of February 2026 but still they went ahead and debit my account after agreeing that they'll cancel everything but they took my last money and I can't reverse it... I'm not happy with their service like I mean the simcard is not even activated since I didn't go to clicks to collect it and I didn't even receive an sms regarding collection of simcard at clicks but my money is gone just like that.