Woolworths Online Platform and IT - Bad customer service

Five weeks ago I tried to place on online order with WW like I have done many times and received an error message. WW reserved the funds on my Black WW Credit Card but the order does not get placed or delivered. My credit card is in good standing. I have made calls to ABSA 3D secure, WW Online Shopping, WW Black credit card div, Credit Card *****, Customer Service etc. I also send several e-mails asking for assistance. Each time they tell me the problem is resolved and when I try to shop online a new uncleared amount is added to my credit card and I have to go through a lengthy process to arrange for it to be cleared. I even tried shopping on the WW platform with my profile and another credit card and I get the same error message "There was an error committing the order". I cleared the cache/cookies/history on my laptop and still the same problem. I even tried to place an order on a laptop I have never used before. I am entitled to free delivery with WW but because the problem is not being resolved I can not use this benefit. The customer service from WW has been disappointing to say the least. They did admit that other customers have the same issue but they don't seem to know how to resolve the problem with the online shopping platform.