very very upset customer

hi I'm writting on behalf of my mom, she and her husband has their own business and runs it from home, but for more than two weeks now since their account was paid on the 2nd July she has had no use of her landline or internet so could not send or receive emails either, my mom has called into telkom almost everyday since the 3rd July spending almost r100 worth of airtime on every call to get told that they HAVE received her payment so it must be a technical fault on their side which will be sorted asap that was two weeks ago, since then my mom had to run her business from her cellphone using more of her own airtime and data which is very unfair as her business is suffering