False advertising

On the 20th of September o signed up for Disney plus because they had a special running for R49.00 and I was using my iPhone .Whwn I signed up o was under the impression that I will be charged R49.00 instead I was charged the full R159.00 which didn’t make sense.Today 23 Sept 2023 I reached out to customer service about my query and I was told that I was charged the full amount because I did it through App Store and the discount only applies on their website.There is no where where it tells you that to qualify for the R49.00 subscription you need to do it strictly on the Disney plus website.This is misleading and taking some of us for a ride