Vodafone India — balance deduction

Address:

Agra, Uttar Pradesh, 282003

Vodafone deducted rs 39 from my balance for an undesired service activation.

When i asked them to refund they refused just because i made a complaint after 24 hrs of deduction while they never sent me msg about service activation or balance deduction.

Is it fair that company wants me to keep an eye on balance and make a complaint as soon as they deduct unfair charges.