Samsung Galaxy Pro — Not Full Information given about the handset before buying

Address:

Ludhiana, Punjab

I have purchased Samsung Galaxy Pro G-B5710. While i bought this set i was not informed that this handset does not type SMS with more than 160 characters neither it is mentioned anywhere on the hanset literature. Now when i type any SMS if the SMS is of more than 160 character it gets converted to MMS which costs me Rs.5 per MMS whereas i have a free SMS pack. Due to this i have high mobile bill. I feel i am being cheated by the mobile company and they have not informed me about this drawback of the product before buying and my Right to Information has been breached. Please help.