False Advertising and Failure to provide items bought online

I have found online shopping so convenient for saving time and always getting want I need at the comfort of my home. However i have the worst experience with Pick N Pay online twice in 2 weeks. My first horrible experience was the Black Friday Special held on 29 Nov 2019, Pick n Pay had advertised a 50" AIM LED T.V @ R2999.00 in National Papers stating also available Online. I had tried from midnight to 6am to purchase this item only to find out that the item was not marked down on their site. I however drove to the Cornubia Mall store to show this to Pick n Pay the manager said his sorry but he can't help with online advertising, he then told me if I go to Pick n Pay Hyper they have stock, because I was in need of this item I did go to Hyper Pick n Pay in Durban North an I got the T.V when I spoke to them there they also had not interest in even correcting their system.

My 2nd experience was on the 02 Dec 2019 I purchased a 410l Defy Chest freezer online received my confirmation #*** that my order would be ready for pick up on the 06 Dec 2019, 4 days passed by on the 05 Dec 2019 at 10:00am funds for the Freezer was reserved by Pick n Pay. At 17:40pm on the 05 Dec 2019 Pick n Pay online department had called me to tell me sorry the item I purchased is no longer in stock and they will not be getting any more 410l chest freezer from Defy. They gave me no option they had said that the need to cancel this order and the funds would be returned to me account. Within seconds of the agent putting the phone down the funds were returned and an email was sent stating I cancelled the order. I called back to inform them that if the item was not in stock then why was it available to purchase, the response was the item was available at the time of my purchase but now that they were looking through they reserved Funds list they realized they is no stock this took them 4 day to realize. I had explained to the agent why was I not informed on the 02 Dec 2019 that there is no stock , why only 4 days later and the day before pick up, her response was they only look for the item purchased when the funds a reserved the day before pick up, which to me makes no sense. When I received my confirmation I am sure that Pick N Pay received a confirmation stating an item has been purchased online if they had contacted me on the 02 Dec 2019 to inform me that they had no stock I would of understood but 4 days later is not acceptable. I asked to speak to the Manager the agent had said he is busy and will return my call in an hour. today is the 06 Dec 2019 I have still not received a call. This is not my fault and i would like Pick n Pay to make some arrangement to assist in resolving this issue.