JET TAKING ADVANTAGE OF THE ELDERLY

My mother is a pensuoner who has been payimg her Jet account everymonth without missing installements even if her account was on zero she would pay because she had taken a Hollard funeral plan through Jet many many years ago when it was still Sales House so thefuneral cover premium wqs beingcollectet trhough this Jet account, last month she went in to the store as usuall to go pay her account and they told her her account has been handed over and they can not accept her payment for the month. now what i want to know is what would the reason be that she would be handed over as she has been paying every month without fail. she has gone number of times to the store to try rectify this they would call in to head office and everytime they will tell her different stories, first it was she us handed over, second time was they could not find her on the system third time it was her id number was incorrect 4th time they said once again they cant find her on the system so now i want this to fix this as my mother has been paying her premium every month for over 20 years and because of the incompetence of Jet her funeral cover mighy have lapsed now and she is not the only 1 my aunt who is also a pensioner is expierencing the same problem. WHAT IT SEEMS TO ME RIGHT NOW IS THAT JET IS TAKING ADVANTAGE OF THE ELDERLY THEY ROB THEM KNOWING THAT THEY ARE VUNERABLE AND UNABLE TO FIGHT THEM..I WANT JET TO BE TAKEN ON FOR THIS THIS IS A CRIME!!!! i want them to contact my mother asap and fix this ***