self service portal automatically migrated me to a different package that I didn't order

I've been a Telkom internet customer for over 20 years now. I signed for the 100GB+100GB LTE package in December 2017. I logged into the self service portal and I was offered to migrate to the Freeme unlimited package. I clicked on the link to get more information. Somewhere the web page became blank and then the next day suddenly my package had changed to the freeme unlimited package. I didn't want this package since it actually only has 25GB of Data. So now for the same price I've now gone down from 200GB of data per month to 25GB data. I don't even know how I was cross migrated considering I was just looking at more information inside the portal. As soon as I noticed that my package had changed I immediately phoned the helpline . The operator was cold , unhelpful and said that since I had changed the package inside the self service portal that there was nothing she could do. I didn't even get a confirmation asking if I wanted to change my package. I was only investigating the option and then next thing I know the page was blank and my package had changed. This is unacceptable. I am going to share my story to my 5000 Facebook friends and to my blog of 115 000 subscribers. How can you not even have a grace period for mistakes? How about fixing your site so it doesn't go blank OR how can you not have a confirmation procedure. just a phone call. I did not order this service migration. I want my account returned back to the package I had it on 3 days ago , 100GB + 100GB package.