Upgrade without consent

I'm highly disgusted and frustrated with Rewardsco. They once again performed an upgrade without our consent. I'd like management to step into this matter to sort it out. I'd like Rewardsco to please refrain from all means of communication in the near future. Since they've been involved, there has always been issues with our MTN profile. I'd like MTN to please block all channels towards Rewardsco from accessing the profile with immediate affect. I think the next step is seek legal advise maybe then representatives will understand where they stand. I want this issue sorted because this is the worst company I've ever come across.