Intrusive Pop Up Ads with No Opt Out Measures

For the past 7 months I have been targeted with a barrage of unwanted MTN branded pop up ads without my consent. There appears to be no conceivable way of opting out of these intrusive ads despite changing all my permission settings and this being in direct violation of POPIA. MTN offers no solution and will not engage in any construction dialogue in order to remedy the problem. I do not wish to receive pop up ads and I would like it to stop with immediate effect.