sales of stock that does not exist - ********** Sales

i would like to lodge a complaint about games stores at The Reds Mall, Centurion. i purchased a washing machine on 3rd August 2020. the lady salesperson in appliance dept said they dont have stock in the shop, but have stock in the warehouse. she assured me that delivery will be made within that week. a week goes by, and she calles to say that they dont have stock, and will recieve within thye next week. another week goes by and, nil action. i tried calling the store, but unsuccessful. i went to the store on 29 august 2020 [26 days later], and there was another salesman who apologised, and said they dont know how they missed this delivery. he assured me after checking bon the system, that there is 14 of those washing machines in the warehouse, and he will ensure it is delivered by the 2nd Sept 2020. come 2nd September 2020, no delivery, no call to inform me what is happening. i pitch up at the Store again on 4September 2020, and the lady who initially sold me the washing machine, said she is so sorry that she forgot to follow up. i told her that on the 29 Aug 2020, there was another salesman who promised that it will be delivered. i asked for the manager, and he came and checked and said there was no stock in warejouse. he then attempted to offer me a machine with lesser specifications. i refused. i told him that i wanted a machine with that specifications as the one i bought. The specifications [8kg with 4 yr factory warranty]. he said he cant help me as he does not hve any 8kg washing machines, yet he had other brands on display with 8kg capacity. i left tyhe store and told him i am reporting this matter and am going to ombudsmn if a resolution cannot ne reached. later he called and told me he has one from another store in JHB, and if i can accept that with delivery on 05 Aug 2020. Come 5 Aug 2020, no delivery and no proffessional courtesy to tell me there is a problem. On 06 Aug 2020, they call me to tell me that they have got a washing machine from Pretoria branch and the driver is on the way. i declined, because i was not going to be available to recieve the washing machine. also due to their failure to conduct their business honestly, i will also be refferring the matter to the ombudsman. it is not acceptable that even a manager doesnt bother to keep his promises. i want a resolution and i want to know what do you propose going forward.