What do I do if the cable provided does not fit in my Android or my laptop?

They come with a USB-C to USB-C cable. One option is to buy a USB-C power adapter such as Buy 20W USB-C Power Adapter - Apple

Another option would be to buy a USB-C to USB cable that would fit your laptop; for example mophie USB-A Cable with USB-C Connector (1 m) - Apple

If you purchased directly from Apple or Apple online, there is a 14 day return policy. If you purchased from an authorized reseller check with them for their policy.

Also be aware that Apple AirPods, iPhones and Android phones (at least Samsung, maybe others) also no longer come with a power adapter. For example: https://www.samsung.com/uk/support/mobile-devices/why-does-samsung-not-include-a-charger-in-the-box/