MACDONALDS SIDWE;LL PORT ELIZABETH.. WORSE SERVICE EVER

Macdonalds Sidwell Port ELizabeht.. disgusting disgraceful.. went there and bought a Big Mac and chips just after 9am ,, after i paid i was told they had no salad dressing only the chicken patty, they refuse to refund me as i did not want it then.. needless to say...i got a Bun with a chicken patty and at least a little white sauce on.... ... threw it in their bin ...am i a dog..NO.... WORSE MACDONALDS EVER EVER..