• Remove any excess by blotting the stain with a paper or cotton towel.
• Blot until the liquid no longer transfers onto the cloth.
• Pour a small amount of water onto the stained area. Keep on blotting up the liquid.
• If the stain still remains, sponge white vinegar diluted 1:1 with water onto the stain.
  TOP TIP: Test the vinegar in a hidden spot first, as it can bleach your carpet (Wool and Nylon)
•  Leave to sit for 5-10 minutes.
• Rinse and blot up the liquid with a clean white cloth.

Tea can leave a permanent stain caused by Tannin. If this happens, there's not much more you can do.