Khazana Jewellery — they are not responding/picking phone

I am trying to talk to khazana marathahalli branch people about scheme which i almost completed the payment, but they are not responding to phone.

I have been trying since last three days... Sometimes it says line is busy and most of the times it's ringing but they are not picking the call.

Could you please help me on this issue

This is the number i am trying out
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