HTC — too many pattern attempts...

Address:

Nellore, Andhra Pradesh

I have my HTC Desire300 mobile. yesterday I put an unlock pattern on it and forgot it after a short time (stupid me) but i entered it wrong something like 25 times and now the only way to sort out the problem is to enter my gmail address and password. Much to my annoyance it hasnt accepted it at all in any way. I have read in many other sites that a lot of HTC customers have problems like this especially the email address problem. I would be extremmely thankful to anybody that can help me out . please help me sir/madam ...