Samsung False Advertising and Bad service

I pre-ordered a Note 20 on 23 August and as the store in Canal walk only got mine in during the week I collected it then. The weekend I went back to get their assistance on loading all the necessary documentation and was told that I will get a reply within 72 hours. Like so many, I have never received a response and was told by the store that there is a backlog and should wait an additional day. I called Samsung help, only to get very uneducated responses telling me first that this promotion ended on 23 August. How are the people at the call centre not even trained on the process. I was then told that someone will call me back, only to later receive a SMS that I should call again with a ref no. On calling again, I was given an email address on 3 September where I should then send all the same details I've already submitted via the app. I raised concerns at the store where I purchased the phone and they have told me that they have escalated the issue. It is now the 6 September and I have not had any response. While your promotion ends today, I am now being told that it is weekend and I will have to wait for Monday for a response. Samsung clearly does not honour the promotions or provide the service that they promise upfront. Making false promises just to get the items sold.