Tata Sky — Refund of monthly recharge 405.00 rupees

Address:

Sivasagar, Assam

My tata sky ID [protected] was recharged on august but due to some internet problem it was not done. but the rechrged amount 405.00 rupess was cut from my bank account but my tata sky was not activated. I complaind to tata sky cuctomer care servive, they assurance me that the amount 405.00 rupees would be credited to my account . . . but still they have not take any action...what should i do ? was it my fault or mistake ?