Demanding extra fees.

&lt;p&gt;&lt;b&gt;Location/place&lt;/b&gt;: Pune, Maharashtra, India.&lt;/p&gt;<p><b>Name of company/service</b>: CMC DATA ENTERPRISES PVT. LTD.</p>Dear Sir/Mam

I am Asawari Gade, I join class after my graduation at ‘CMC Data enterprises pvt. ltd’ G. m. road shivajinagar pune,
Maharashtra. in December 2012.
That time they told me tht will complet 3 months certification course at a course fee Rs 42,000/- but when you paid a fees at one installment you have to paid only 35,000/- plus 1000/- for registration, soo I paid all total amount 36,000/- at that time in one installment that time they told me that your fees due amount is totaly cleard. But now they demanding fees from me again saying that you have to pay more 4375/- service tax which is 12.5%. If you not paid that you are not allowed for examination and will not gives you any certificate.
And they didn’t complet there course in 3 months as also.
Because of above reasons I completing here, so please take a action or give me advice what action should I take.

Thanking you,

Yours faithfully,
Asawari Gade
(Mob number 7350021898/9561186287)