Investigation taking too long

on the 19th october my phone was disconnected and i called the call centre, i was told by the consultant that my sim was inactive and i needed to get another sim card and do a sim swap. i could not make any calls or receive calls, get access to the internet as i was getting an error that i was not registered on the network. that was around 4pm. i then decided to but the sim card on friday 23 october and only did the simswap then. only the airtime was transferred over to the new sim but all my data was not. i called and was advised that i had used the data on the 20th, 21st and 22nd of october, i asked the agent how that could be possible because i didnt have access to the network and was unable to access anything on the ohone for 4 days. she told me that an investigation will be done and i will receive feedback in 72 hours, i gave her my vodacom number which i used to call the contact centre with wasting my airtime because on a different number the calls are billed. i told them to use that number to retrieve all the calls i made and tell me how i used the data but till date i still havent received feedback. i regret changing numbers to 8TA because they dont take clients serious.