Incredible Connection Cresta - Incredible bad after service

Really, really poor in every aspect. I bought a Lenova IP3i7 with a three warranty. I bought such in November. The Laptop became incredibly hot and ceased to operate. At the Cresta l was told that there is a 21 day turn around and I must bye and install MS 11 operating system and install it myself and I will loose all my data. Of course this was not mentioned when it was sold to me. I am disabled and rely on an income that is derived from my laptop. They staff had no intention of hearing anything I had to say. I requested to discuss this with the store manager. He was not in (on a Saturday morning?). I feel obliged to state "be careful about fancy sales talk where you are promised the world and then be faced with really poor aftersale service by the store and the brand. I which there was a zero star rating. After service is everything. Obtaining an email address is a real task.