Disappointed in Apple taking shortcuts when it comes to repairs.

My key board keys started falling off my MacBook Pro. First time May 2020. Laptop 2 years old still within warranty. I send it in for repair. Asked for a replacement of keyboard as I could feel it would just be a matter of time before more fell off. Only the loose keys were replaced. December 2020. Same thing - keys falling off. Once again I send it in. This time begging for a new keyboard as I cannot keep sending it in when keys fall off. AGAIN they ONLY replace the loose keys instead of giving me a new keyboard to make sure I don't encounter this problem. The iStore Tech Support at Cavendish, Cape Town told me before I send it off that Apple should give me a new keyboard especially now that it was the second time I send it in. Apple South Africa seems to take shortcuts when it comes to repairs. I don't buy a very expensive product to then have to send it in every 5-6 months for a repair. I am very disappointed in Apple and their client service.