***** committed on my name

In 2011 my cousin by the name of Dinah went to Lewis Store using my details she opened an account without my consent she was assisted by her friend's mother to opened account as a result she never paid the account it ended up on areas then the store blacklisted my name, I'm trying to make application since then I can't, when I went to Lewis I was told in order for my name to be removed I need to open a case and provide a case number which I did but nothing was done on their side as per promise. Since then I am battling to open any accounts on my name, I called Lewis customer services yesterday I spoke to a consultant by the name of Denil she took my number and she said her manager Nasrien will call me today I haven't receive a call I tried to call again but I am holding forever with no response. This is really in convenience me, I'll be happy if this can be sorted