Samsung Microwave — leakage of microwave during operation

Address:

Ahmedabad, Gujarat

We have purchased Microwave of Samsang company from Vijay sale Maninagar , Ahmedabad in Jan-2013 It is not properly working. There is leakage of waves , we feel there is air flow coming out as and when we start operation.
Name; Bhavna Dilip Patel
Address; c/118 Janpath society. On ghodasar canal . ghodasar. Ahmedabad-380050
Contact no ; [protected]
Please help in this matter.
Yours faithfully
Bhavna Patel