Unhappy customer

I bought a sim card 2months back to use it for my router then it was fine working nicely a 2weeks back I bought data 4 R200 which is 100gigs and then on Sunday It didn't want to work so I checked my balance I had about 300mb but the problem was network but it worked again on Monday it started again I left it like that coz I thought it's the network again so Tuesday I ask the guy iam working with to check it 4 me and it didn't want to check balance so we call the customer care which I was told that my sim crashed wen they asked me about the phone number which I Dnt knw coz I use the sim 4 data and I told them the lady that was assisting me told me to take the sim card to a cellc shop so I asked the guy that iam working with to take it to Maponya cozz he was off the following day so wen he got there the ladies there didn't want to help him they told him that even if they do simswop I won't get my data back so wen he asked that what will happen to the data they told him he has to buy another data and forget about tge other 1 so what I Dnt get its that it's not my fault the sim crashed y should I be punished for cellc dishonesty what I knw is that wen u do simswap whatever u had on your old sim it goes to your new sim this was supposed to last me till month end iam so angry and disappointed on how cellc treat there customers how do we recommend it to other people wen they give such bad service