Hi FatimaContreras,
Thank you for reaching out Microsoft Community.
Well, Microsoft Surface Support handles all of your concerns even if your device will be out of warranty. We normally provide troubleshooting or fixes either over the phone or from all of our online links available just to fix any software related issues that you might experience on the Surface device. In the event that you'll need a replacement, you'll have to return the unit as to where it was purchased (the country of origin) simply because, not all Surface devices are being launched in all those countries who sell Surfaces, some of the countries who sell Microsoft products doesn't have a physical MS store and few are just being sold by 3rd party retailers. Aside from that, Microsoft abides replacement policies based on Consumer Law, say for example," In US, gadgets purchased by customers have 1 year manufacturer warranty while in other countries, it has 2 years manufacturer warranty".
If this answers your question, please let our Community know by marking this post as an answer. Otherwise don't hesitate to respond to this thread for further assistance.
Regards,
Crest_Z