ubislate not delivered

Location/place: ghaziabd

Name of company/service: datawind ubislate

I BOOKED UBISLATE 7+ PM4AB52,9540409774.ON 18 DEC 2011,AND CHEQUE IN JAN 2012. 2099Rs. DEDUCTED FROM MY ACCOUNT AS WELL.
TILL DATE I HAVE NOT RECEIVED THE TAB.OR CLEAR STATUS.