Mr.D not compensating for missing items

After ordering food last night from Nando's a portion of our order did not arrive. I have submitted a complaint via the app and knowing that never gets resolved my partner called into the call center. Over the phone the lady was very helpful and ensured we would get reimbursed and she would bring it up with the restaurant to make sure it didn't happen again. We held on the line and was told confirmation of the reimbur*****t was done and sent. At the time of this complaint still no email has been received and no refund has been given to our Mr.D account. This is becoming a joke and blatant theft.