BAD customer service

I went to McDonalds Durbanville on the 11th of Feb at 13h07 and ordered a Happy meal nuggets and a 10 piece nugget meal. I paid with my debit card at drive thru and it went through but it could not print a receipt as there was no paper left in the machine. I got an sms notification that it was processed and deducted from my bank account. (NOT a standard bank mistake) The lady at the window proceeded to put paper in the machine and obviously it did not print again. So she calls her Manager, Rene, and she said it did not go through. Now, i am trying to explain about the paper not being in the machine but she doesnt want to hear my story. So i said, that if this is not deducted from my account and I have to come back, she needs to refund my money AND give me an extra order of a happy meal and 10 piece nuggets because I had to drive all the way back. She said it is fine, I just need to bring my bank account statement showing that the amount was not given back to me. So today, on the 4th of March I got my bank statement and went to Mcd to collect my money which was double deducted and collect my meals which I was promised. Mcd REFUSED to refund me or give me what i was promised