SMS TEXT Message Recive with 200+ characters Corrupted

i need to receive some Text messages with more than 153 characters , specifically when i get a msg with 175 chars  the GET MessageText Returns me the last 50 , so i cant do anythign about...

is there anything i can do to get the entire message?  or the first 100 characters

--

the limit is 153 characters, see also these threads

texting limit

--