Poor service from Woolworths online shopping

Hi,

I was on Woolworths online shopping on the 1st August 2020 and I came across this chino pants I liked. We I processed with purchasing the pants it said I qualify for free delivery however when I was about to complete the purchase it gave me a total price with R25 delivery fee. I than sent Woolworths an email (with screenshots) to explain why am I being charged delivery fee when the system clearly state I qualify for free delivery, no one answered. I than went to social media where I was told someone from the service department will contact me within 48 hour, no one did contact me, I than sent a follow email, again no answer but received an email to rate their service. I did give them a rating of very poor service, after the survey I received an email to say someone from the service department will contact me. I’m still waiting. I have sent an email again today advising that I haven’t received any feedback with regards to my question. Now the pants is out of stock still no communication from Woolworths. This has been worst service from Woolworths I have ever seen.