ILL due to Debonair's system & food supp****. NEVER AGAIN

Debonairs have a call center where your order is received and the sent to your closest store. I have ordered the same item A large Tika Chicken Sub but specified that i CANNOT have any onion or spring onion as it makes me ILL. I replaced the items as suggested with Green Pepper & Tomato. Of the 3 times I received it correctly once!!! The 2nd time they expected me to pay for the green pepper & tomato, they did refund my money, The 3rd & LAST time i received the Sub and was a little concerned as I didn't see the tomato & green pepper as seen previously. I had 2 mouthfuls and realised that there was ONION. Fed the rest to my dogs. Phoned the store who apologised but she offered to replace it correctly. No Thank You as i knew for the next couple of days i was going to suffer, She gave me one of I think the owners cell numbers. I explained what had happened and that i was EXTREMELY upset. He asked if he could look into the matter and get back to me as all orders are recorded. The order was taken correctly he says at the call center but according to their Head Office that due to the weather that the order never went through correctly. Pathetic excuse. I was refunded the R76.90 & had to suffer in silence. Had I gone to my doctor i guess things would have been different. Luckily I believe in KARMA and their day will come. I WILL NEVER walk or phone any Debonairs again and will certainly NEVER recommend them. I got the feeling that the error in the system was of major concern to them than a client being ill.