RMCS= Ridiculously Meaningless Client Service

I've been trying to get RMCS to update their system and to convert my mothers cell phone number back to a pay as you go as her contract with RMCS have ceased many months ago. She cannot take out a new contract on that number as it reflects as a RMCS contract and not pay as you go. We have been into Edgards Greenacres and Edgars Walmer Park numerous times. I have phoned and emailed numerous times, nobody replies or come back to you. The call centre just rings and when you finally get through, you get cut off. The last time I was holding on for 35 minutes - the contract with RMCS has run its time and is finished. Why can they not change it to reflect as a pay as you go so that I can take out a contract for my mother, who is 75 years old and needs air time and data as she lives on her own. Poor pathetic service.