Airtel — fraud done by airtel executives

it is long story but i will cut it short i had applied for airtel broad band connection on 14 jan 09 and i paid Rs.300 cash to Mr Rakesh kumar contact no.[protected] and Mr.rohit kumar contact no.[protected] and i was assured that my internet connection would take place with in three days.after my several telephonic request the gave me my cash receipt ...receipt no is 499348 SEF NO.518537.
it is very disgusting that nothing had happened so far..my projects are getting delayed by every passing day.now they are not picking up my calls also.i will very ...