Poor customer service

I had app**** for a iphone 11 on contract, which comes with flex on 4 package which includes 50GB once off data, I received the package and to my surprise I got 20GB.. I got to ask why I received less data and was told that because I app**** for the contract during the month on the 15th.. had the agent told me that the once off data has conditions on whether it's in the middle of the month or start of the month ,I would have opted for something else ,so no one explained to me how the package works, I'm very disappointed. Another agent promised to send me an email she will escalate the matter, I haven't heard from her till now and no email was sent to me regarding the matter. Really disappointed in the service, would not recommend anyone to purchase a contract from telkom.. Queen *** ***