Add punctuation: So far our pleas have fallen on deaf ears so this action at the Court of Human Rights is now essential to force the Government to accept its responsibilities and look after consumers
A: So far, our pleas have fallen on deaf ears so this action at the Court of Human Rights is now essential to force the Government to accept its responsibilities and look after consumers."

Add punctuation: According to the customer survey the products energy efficiency has become a decisive factor when choosing supplier and this is used as a selling point in the dialogue with the customer
A: According to the customer survey the product's energy efficiency has become a decisive factor when choosing supplier, and this is used as a selling point in the dialogue with the customer.

Add punctuation: Colophonium rosin is a common cause of contact allergy and allergic contact dermatitis
A:
Colophonium (rosin) is a common cause of contact allergy and allergic contact dermatitis.