Poor service

I have been trying to get a letter from Cell C customer care for 14 day's, 2 phones was taken by gun point I need a letter from Cell C to say that the 1 phone cannot be blacklisted as at the time it did not have a sim card, however Cell C customer care have been sending me from pillar to post and escalating my call to the relevant department but... no letter has been mailed I have not received feedback or any call from Cell C. The slogan \Cell C for Yourself"means all of that as you are on your own and by yourself when in need of help from Cell C"""