Toni and Guy rapped over Towie Tweets

Sarah Coles
Gemma Collins
Gemma Collins

Matt Crossick/EMPICS Entertainment

Toni and Guy has been warned over tweets from Towie star Gemma Collins promoting its Lakeside salon. Collins visited the salon and tweeted "In @Toniandguylside having such a wonderful time defo got my hair back to good condition 10% off call today and quote #gemma x" and @Toniandguylside I have the most amazeballs hair colour and condition best salon ever call and say #gemma for discount xx".

So why was The Advertising Standards Authority concerned, and can you trust recommendations from celebrities on Twitter?