Great Products Not so Customer Service

Hi there. Please I be advice on the time when my mom will get the invoice for repairs to be done on her refrigerator, because at the this moment the service is not looking so good and I am very disappointed. We had a tech here yesterday Ref No: *** to have a look at my elderly mom's refrigerator and he indicated that the one fan and needs to be replace and re-gas to be done. He promised that today she will receive the quote of what it will cost to repair and up till now no feedback was given keeping in mind food is going bad because the refrigerator is not working. My mom even tried calling and was promise someone will get back to her but no one did. This is not a good look from Defy Service Centre keeping in mind my mom's stove, deepfreeze, microwave and fridge is all Defy as she believed in the brand and now we getting service like this. Please can this get sorted as she really need her fridge working.