Security tag left on a shoe purchased online

I purchased a shoe online (amongst many other items on the order #o***) and it was delivered with the security tag. I sent an email on 29 July 2020 advising that the shoe was delivered with the security tag. I thereafter received a response email on 31 July 2020 advising that I should return the shoe to my nearest store. I responded with advising that this security tag was left on the shoe as a result of negligence of a Woolworths employee and will not incur additional costs of going to the store for this negligence. In addition, I ordered online as I did not want physically to go to the store to purchase the items. I do not understand why this has become my problem. There have been various emails during this month (August 2020) still advising me to return the shoe to the store, which I vehemently refuse to do so. It has now been almost a month and this matter is still not resolved. I had even advised them to collect the shoe as I have no use of the shoe with the security tag. This is the worst customer service that I have received from the company to date.