Airtel
Unwanted promo before making any outgoing call

I have an airtel sim.

No. 9903069432

Before making any outgoing call to anyone from this no., a promo for about 1 minutes can be heard. After doing DND to this no. why this promo should be heard? And for this problem i have complaint several times to the airtel customer care, but no action had been taken by them. I am facing problem to connect someone urgently.

Company: Airtel
Country: India
State: West Bengal
City: Howrah

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