Complain about Leah Toys R us Cresta

I would like to write a complaint about Lea from Toys T Us Cresta Branch. I bought a Bubblegum Tablet for my Baby at Cresta branch for an amount of R1799. I still have receipt this day. After a month I had to give the Tablet because it was giving endless problems. I was told it was going to be submitted for repairs and I was given forms-to complete when I asked what all that meant the Lady who was helping me said she also does not understand herself. Anyway I completed the forms and the next thing I received a Call from Featherbrook, and I was told to pay R635 for repairs. I paid the money. and my laptop was released. Now during lockdown the Tablet started not to charge and I sent a few whatsapp messages to Featherbrook but they could not assist me, until Toys R us Cresta saw open. I came in and I spoke to a Lady who is the only one who deals with Bubblegum Tablets and she accepted the tablet on Friday 22nd of May and I was told the tablet was going to be sent for repairs on Monday the 25th. I called on thursday the 28th to find out as to how far was the shop with the repairs, The person who answered said to me they do not know anything about the Bubblegum tablet. I called the repairs centre by the name of Featherbrook, the Lady who was helpful took her time to check and she got back to and sand said Nothing and I mean nothing was sent from Cresta Branch. I was furious of course for obvious reasons. I went to Cresta Toys R Us and I asked for the Manager and they called the Woman by the Name of Lea. When they were calling her her response was "What is it About" I was not happy with the response she gave to the Staff. She eventually came not even wearing a proper but some cloth on her mouth. I asked her if she was going to be able to help us. she said yes with a very unfriendly attitude. I asked her about the tablet which was submitted for repairs, she then said to me it was submitted yesterday, and my immediate response was why were we deceived and were told that it was going to be submitted on that previous Monday for repairs and her response was I do not know what is your issue because the Tablet was sent via Courier for repairs. That response made me furious and she went on and said it is not her responsibility it was another Lady's responsibility, and my response was if you are the Store manager everything that is happening. She went on and told me that she does not know what we were on about. She eventually left me on the counter. I was surprise at the way she was acting as a Manager of the Branch. Lea does not have any response for the Customers or for the Staff that work under her for that matter. I have never in my life seen a person in customer services who is rude just like Lea from Toys R us Cresta. What is more disturbing is that she is called a Branch Manager. I will never buy from any Toys R us store because of Lea's behavior. Something drastic must be done about that Branch especially Leah the Branch Manager.